Add selective Postfix SRS installation and management
This commit is contained in:
Executable
+258
@@ -0,0 +1,258 @@
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#!/usr/bin/python3
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import subprocess
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from collections import deque
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import sys
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ALIAS_MAPS = [
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"pgsql:/etc/postfix/pgsql_virtual_alias_maps.cf",
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"pgsql:/etc/postfix/pgsql_virtual_alias_domain_maps.cf",
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"pgsql:/etc/postfix/pgsql_virtual_alias_address_rewriting.cf",
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"pgsql:/etc/postfix/pgsql_virtual_alias_domain_catchall_maps.cf",
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"btree:/etc/postfix/virtual_alias_maps",
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]
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MAILBOX_MAPS = [
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"pgsql:/etc/postfix/pgsql_virtual_mailbox_maps.cf",
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"pgsql:/etc/postfix/pgsql_virtual_alias_domain_mailbox_maps.cf",
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]
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DOMAIN_MAPS = [
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"pgsql:/etc/postfix/pgsql_virtual_domains_maps.cf",
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"pgsql:/etc/postfix/pgsql_relay-domain-maps.cf",
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"btree:/etc/postfix/virtual_alias_domains",
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]
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TRANSPORT_MAPS = [
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"pgsql:/etc/postfix/pgsql_transport_maps.cf",
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"btree:/etc/postfix/transport",
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"btree:/etc/postfix/relay_domains",
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]
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def lookup(key, table):
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result = subprocess.run(
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["/usr/sbin/postmap", "-q", key, table],
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capture_output=True,
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text=True,
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timeout=10,
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)
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if result.returncode == 0:
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return result.stdout.strip() or None
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if result.returncode == 1 and not result.stderr.strip():
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return None
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raise RuntimeError(
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f"{table}: {result.stderr.strip() or 'Lookup fehlgeschlagen'}"
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)
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def lookup_any(key, tables):
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for table in tables:
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value = lookup(key, table)
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if value is not None:
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return value
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return None
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def postconf(name):
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result = subprocess.run(
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["/usr/sbin/postconf", "-c", "/etc/postfix", "-x", "-h", name],
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capture_output=True,
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text=True,
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timeout=10,
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)
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if result.returncode:
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raise RuntimeError(result.stderr.strip())
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return result.stdout.strip()
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def transport_keys(address):
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localpart, domain = address.rsplit("@", 1)
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keys = [address, f"{localpart}@"]
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parts = domain.split(".")
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for i in range(len(parts)):
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suffix = ".".join(parts[i:])
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keys.extend([suffix, "." + suffix])
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return list(dict.fromkeys(keys))
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def classify_destination(address):
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domain = address.rsplit("@", 1)[1]
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if lookup_any(address, MAILBOX_MAPS):
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return "LOCAL"
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if domain in postconf("mydestination").lower().split():
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return "LOCAL"
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if lookup_any(domain, DOMAIN_MAPS):
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return "UNKNOWN"
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for key in transport_keys(address):
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transport = lookup_any(key, TRANSPORT_MAPS)
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if transport:
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transport_type = transport.split(":", 1)[0].lower()
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if transport_type in ("smtp", "srs-forward"):
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return "EXTERNAL"
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return "UNKNOWN"
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default_transport = postconf("default_transport").strip().lower()
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if (
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default_transport in ("smtp", "srs-forward")
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or default_transport.startswith(("smtp:", "srs-forward:"))
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):
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return "EXTERNAL"
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return "UNKNOWN"
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MAX_ALIAS_DEPTH = 10
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MAX_ALIAS_NODES = 200
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def alias_reaches(original, recipient):
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"""Find alias paths with BFS and detect cycles in the explored graph."""
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pending = deque([(original, 0)])
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visited = {original}
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edges = {}
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nodes = 0
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depth_exceeded = False
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while pending:
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current, depth = pending.popleft()
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nodes += 1
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if nodes > MAX_ALIAS_NODES:
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return None, "Zu viele Alias-Knoten"
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aliases = lookup_any(current, ALIAS_MAPS)
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if not aliases:
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edges[current] = []
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continue
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targets = [
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x.strip().lower()
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for x in aliases.split(",")
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if (
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x.strip()
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and x.strip().count("@") == 1
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and x.strip().lower() != current
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)
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]
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edges[current] = targets
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for target in targets:
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if target == recipient:
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if depth + 1 <= MAX_ALIAS_DEPTH:
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return True, "Alias-Kette erkannt"
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depth_exceeded = True
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continue
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if target in visited:
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continue
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if depth + 1 >= MAX_ALIAS_DEPTH:
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depth_exceeded = True
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continue
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visited.add(target)
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pending.append((target, depth + 1))
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if depth_exceeded:
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return None, "Maximale Alias-Tiefe erreicht"
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# Detect cycles in the explored directed graph.
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# 0 = unseen, 1 = active, 2 = completed
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state = {}
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def has_cycle(node):
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state[node] = 1
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for target in edges.get(node, []):
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if target not in edges:
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continue
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status = state.get(target, 0)
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if status == 1:
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return True
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if status == 0 and has_cycle(target):
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return True
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state[node] = 2
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return False
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for node in edges:
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if state.get(node, 0) == 0 and has_cycle(node):
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return None, "Alias-Schleife erkannt"
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return False, "Empfaenger nicht in direkter Alias-Kette"
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def decide(sender, recipient, original):
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sender = sender.strip().lower()
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recipient = recipient.strip().lower()
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original = original.strip().lower()
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if not sender or sender == "<>":
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return "NO_SRS", "Null-Absender"
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if sender.count("@") != 1 or recipient.count("@") != 1:
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return "UNKNOWN", "Ungueltige Empfaengeradresse"
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if original.count("@") == 0:
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return "NO_SRS", "Lokaler Alias"
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if original.count("@") != 1:
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return "UNKNOWN", "Ungueltige Empfaengeradresse"
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if recipient == original:
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return "NO_SRS", "Keine Empfaengerumschreibung"
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reaches, reason = alias_reaches(original, recipient)
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if reaches is not True:
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return "UNKNOWN", reason
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destination = classify_destination(recipient)
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if destination == "LOCAL":
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return "NO_SRS", "Lokales Postfach"
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if destination == "EXTERNAL":
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return "SRS", "PostfixAdmin-Alias-Kette mit SMTP-Zustellung"
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return "UNKNOWN", "Zustellweg nicht eindeutig"
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def main():
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if len(sys.argv) != 4:
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print(
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"Aufruf: srs-alias-decision.py "
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"<sender> <recipient> <original_recipient>",
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file=sys.stderr,
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)
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return 2
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try:
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decision, reason = decide(*sys.argv[1:])
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except (RuntimeError, subprocess.TimeoutExpired) as exc:
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print(f"UNKNOWN: Lookup-Fehler: {exc}")
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return 1
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print(f"{decision}: {reason}")
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return 1 if decision == "UNKNOWN" else 0
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if __name__ == "__main__":
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sys.exit(main())
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Executable
+177
@@ -0,0 +1,177 @@
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#!/usr/bin/python3
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import smtplib
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import subprocess
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import sys
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SMTP_HOST = "127.0.0.1"
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SMTP_PORT = 10028
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DECISION_SCRIPT = "/usr/local/sbin/srs-alias-decision.py"
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SRS_MAP = "socketmap:inet:127.0.0.1:10003:forward"
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EX_TEMPFAIL = 75
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EX_UNAVAILABLE = 69
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def run_command(args):
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result = subprocess.run(
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args,
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capture_output=True,
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text=True,
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timeout=30
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)
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if result.returncode != 0:
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raise RuntimeError(
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result.stderr.strip()
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or result.stdout.strip()
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or f"Exit-Code {result.returncode}"
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)
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return result.stdout.strip()
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def determine_sender(sender, recipient, original_recipient):
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decision = run_command([
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DECISION_SCRIPT,
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sender,
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recipient,
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original_recipient
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])
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if decision.startswith("NO_SRS:"):
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return sender
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if not decision.startswith("SRS:"):
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raise RuntimeError(
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f"Keine eindeutige SRS-Entscheidung: {decision}"
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)
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rewritten_sender = run_command([
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"/usr/sbin/postmap",
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"-q",
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sender,
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SRS_MAP
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])
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if not rewritten_sender:
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raise RuntimeError("PostSRSd lieferte keinen Absender")
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if not rewritten_sender.lower().endswith("@srs.warenform.de"):
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raise RuntimeError(
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f"Unerwartete SRS-Domain: {rewritten_sender}"
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)
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if not rewritten_sender.upper().startswith(("SRS0=", "SRS1=")):
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raise RuntimeError(
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f"Ungueltige SRS-Adresse: {rewritten_sender}"
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)
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return rewritten_sender
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def main():
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if len(sys.argv) not in (5, 6):
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print(
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"Aufruf: srs-forward.py "
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"sender recipient original_recipient queue_id [envid]",
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file=sys.stderr
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)
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return EX_TEMPFAIL
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sender, recipient, original_recipient, queue_id = sys.argv[1:5]
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envid = sys.argv[5] if len(sys.argv) == 6 else ""
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if envid.startswith("envid="):
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envid = envid[len("envid="):]
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try:
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envelope_sender = determine_sender(
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sender,
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recipient,
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original_recipient
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)
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message = sys.stdin.buffer.read()
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with smtplib.SMTP(
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SMTP_HOST,
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SMTP_PORT,
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timeout=30
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) as smtp:
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smtp.ehlo()
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mail_options = []
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rcpt_options = []
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if envid:
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if not smtp.has_extn("dsn"):
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raise RuntimeError(
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"SMTP-Ziel unterstuetzt kein DSN/ENVID"
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)
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mail_options.append(f"ENVID={envid}")
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if original_recipient and smtp.has_extn("dsn"):
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rcpt_options.append(
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f"ORCPT=rfc822;{original_recipient}"
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)
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smtp.sendmail(
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envelope_sender,
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[recipient],
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message,
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mail_options=mail_options,
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rcpt_options=rcpt_options
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)
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except smtplib.SMTPRecipientsRefused as exc:
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codes = [
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code
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for code, response in exc.recipients.values()
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]
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permanent = bool(codes) and all(
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500 <= code < 600 for code in codes
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)
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result = EX_UNAVAILABLE if permanent else EX_TEMPFAIL
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enhanced_status = "5.0.0" if permanent else "4.0.0"
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print(
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f"{enhanced_status} SRS queue_id={queue_id}: "
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f"SMTP-Empfaengerablehnung: {exc.recipients!r}",
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file=sys.stderr
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)
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return result
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except smtplib.SMTPResponseException as exc:
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code = exc.smtp_code
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result = EX_UNAVAILABLE if 500 <= code < 600 else EX_TEMPFAIL
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enhanced_status = "5.0.0" if result == EX_UNAVAILABLE else "4.0.0"
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print(
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f"{enhanced_status} SRS queue_id={queue_id}: "
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f"SMTP {code}: {exc.smtp_error!r}",
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file=sys.stderr
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)
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return result
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except (
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subprocess.TimeoutExpired,
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RuntimeError,
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smtplib.SMTPException,
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OSError
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) as exc:
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print(
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f"SRS queue_id={queue_id}: temporaerer Fehler: {exc}",
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file=sys.stderr
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)
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return EX_TEMPFAIL
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return 0
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if __name__ == "__main__":
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sys.exit(main())
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Executable
+112
@@ -0,0 +1,112 @@
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#!/usr/bin/python3
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import socket
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import socketserver
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LISTEN_HOST = "127.0.0.1"
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LISTEN_PORT = 10004
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SRS_HOST = "127.0.0.1"
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SRS_PORT = 10003
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SRS_DOMAIN = "srs.warenform.de"
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MAX_REQUEST = 8192
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TIMEOUT = 3
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def read_netstring(sock):
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length = bytearray()
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while True:
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c = sock.recv(1)
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if not c:
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raise EOFError()
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if c == b":":
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break
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if not c.isdigit() or len(length) >= 8:
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raise ValueError("Invalid netstring length")
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length.extend(c)
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if not length:
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raise ValueError("Empty netstring length")
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size = int(length)
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if size > MAX_REQUEST:
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raise ValueError("Netstring too large")
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data = bytearray()
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while len(data) < size:
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chunk = sock.recv(size - len(data))
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if not chunk:
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raise EOFError()
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data.extend(chunk)
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if sock.recv(1) != b",":
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raise ValueError("Invalid netstring terminator")
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return bytes(data)
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def netstring(data):
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return str(len(data)).encode() + b":" + data + b","
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class Handler(socketserver.BaseRequestHandler):
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def handle(self):
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self.request.settimeout(TIMEOUT)
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while True:
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try:
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request = read_netstring(self.request)
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except (EOFError, OSError):
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return
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except ValueError:
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self.request.sendall(netstring(b"PERM Invalid request"))
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return
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try:
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operation, address = request.decode("utf-8").split(" ", 1)
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except (UnicodeError, ValueError):
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self.request.sendall(netstring(b"PERM Invalid request"))
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continue
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if operation != "reverse":
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self.request.sendall(netstring(b"NOTFOUND "))
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continue
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if "@" not in address:
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self.request.sendall(netstring(b"NOTFOUND "))
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continue
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domain = address.rsplit("@", 1)[1].lower()
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if domain != SRS_DOMAIN:
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self.request.sendall(netstring(b"NOTFOUND "))
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continue
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try:
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with socket.create_connection(
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(SRS_HOST, SRS_PORT), timeout=TIMEOUT
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) as upstream:
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upstream.settimeout(TIMEOUT)
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upstream.sendall(netstring(request))
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response = read_netstring(upstream)
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if response.startswith((b"OK ", b"NOTFOUND ", b"TEMP ", b"PERM ")):
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result = response
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else:
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result = b"TEMP Invalid upstream response"
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except (OSError, EOFError, ValueError):
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result = b"TEMP SRS backend unavailable"
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self.request.sendall(netstring(result))
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||||
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class Server(socketserver.ThreadingTCPServer):
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allow_reuse_address = True
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daemon_threads = True
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||||
|
||||
if __name__ == "__main__":
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with Server((LISTEN_HOST, LISTEN_PORT), Handler) as server:
|
||||
server.serve_forever()
|
||||
Executable
+113
@@ -0,0 +1,113 @@
|
||||
#!/usr/bin/env python3
|
||||
|
||||
import socket
|
||||
import sys
|
||||
|
||||
SRS_DOMAIN = "srs.warenform.de"
|
||||
SOCKET_HOST = "127.0.0.1"
|
||||
SOCKET_PORT = 10003
|
||||
TIMEOUT = 5
|
||||
MAX_RESPONSE = 4096
|
||||
|
||||
|
||||
def read_netstring(sock):
|
||||
length_bytes = bytearray()
|
||||
|
||||
while True:
|
||||
char = sock.recv(1)
|
||||
if not char:
|
||||
raise ValueError("Incomplete netstring length")
|
||||
if char == b":":
|
||||
break
|
||||
if char < b"0" or char > b"9" or len(length_bytes) >= 8:
|
||||
raise ValueError("Invalid netstring length")
|
||||
length_bytes.extend(char)
|
||||
|
||||
if not length_bytes:
|
||||
raise ValueError("Empty netstring length")
|
||||
|
||||
length = int(length_bytes)
|
||||
|
||||
if length > MAX_RESPONSE:
|
||||
raise ValueError("Netstring response too large")
|
||||
|
||||
data = bytearray()
|
||||
|
||||
while len(data) < length + 1:
|
||||
chunk = sock.recv(length + 1 - len(data))
|
||||
if not chunk:
|
||||
raise ValueError("Incomplete netstring response")
|
||||
data.extend(chunk)
|
||||
|
||||
if data[-1:] != b",":
|
||||
raise ValueError("Invalid netstring terminator")
|
||||
|
||||
return bytes(data[:-1]).decode("utf-8")
|
||||
|
||||
|
||||
def verify_srs(address):
|
||||
request = f"reverse {address}".encode("utf-8")
|
||||
packet = str(len(request)).encode("ascii") + b":" + request + b","
|
||||
|
||||
with socket.create_connection(
|
||||
(SOCKET_HOST, SOCKET_PORT), timeout=TIMEOUT
|
||||
) as sock:
|
||||
sock.settimeout(TIMEOUT)
|
||||
sock.sendall(packet)
|
||||
response = read_netstring(sock)
|
||||
|
||||
if response.startswith("OK "):
|
||||
original = response[3:]
|
||||
if not original or "@" not in original:
|
||||
raise ValueError("Invalid reverse result")
|
||||
return "OK"
|
||||
|
||||
if response.startswith("NOTFOUND "):
|
||||
return "REJECT 550 5.1.1 Invalid SRS address"
|
||||
|
||||
raise ValueError(f"Unexpected socketmap response: {response}")
|
||||
|
||||
|
||||
def check_recipient(recipient):
|
||||
if "@" not in recipient:
|
||||
return "DUNNO"
|
||||
|
||||
localpart, domain = recipient.rsplit("@", 1)
|
||||
|
||||
if domain.lower() != SRS_DOMAIN:
|
||||
return "DUNNO"
|
||||
|
||||
if not localpart.upper().startswith(("SRS0=", "SRS1=")):
|
||||
return "REJECT 550 5.1.1 Invalid SRS address"
|
||||
|
||||
try:
|
||||
return verify_srs(recipient)
|
||||
except (OSError, UnicodeError, ValueError) as exc:
|
||||
print(f"SRS verification error: {exc}", file=sys.stderr)
|
||||
return "DEFER 451 4.3.0 SRS verification unavailable"
|
||||
|
||||
|
||||
def main():
|
||||
while True:
|
||||
attributes = {}
|
||||
|
||||
for line in sys.stdin:
|
||||
line = line.rstrip("\r\n")
|
||||
|
||||
if not line:
|
||||
break
|
||||
|
||||
if "=" in line:
|
||||
key, value = line.split("=", 1)
|
||||
attributes[key] = value
|
||||
else:
|
||||
return
|
||||
|
||||
recipient = attributes.get("recipient", "")
|
||||
action = check_recipient(recipient)
|
||||
|
||||
print(f"action={action}\n", flush=True)
|
||||
|
||||
|
||||
if __name__ == "__main__":
|
||||
main()
|
||||
@@ -0,0 +1,108 @@
|
||||
# See /usr/share/postfix/main.cf.dist for a commented, more complete version
|
||||
|
||||
# See http://www.postfix.org/COMPATIBILITY_README.html
|
||||
compatibility_level = 3.9
|
||||
|
||||
# Which domain that locally-originated mail appears to come from.
|
||||
# Debian policy suggests to read this value from /etc/mailname.
|
||||
#XX needs a review in postinst&config
|
||||
#myorigin = /etc/mailname
|
||||
#myorigin = $mydomain
|
||||
myorigin = @MYORIGIN@
|
||||
|
||||
# Text that follows the 220 code in the SMTP server's greeting banner.
|
||||
# You MUST specify $myhostname at the start due to an RFC requirement.
|
||||
smtpd_banner = $myhostname ESMTP $mail_name (Debian)
|
||||
|
||||
# IP protocols to use: ipv4, ipv6, or all
|
||||
# (set this explicitly so `post-install upgrade-configuration' wont complain)
|
||||
inet_protocols = all
|
||||
|
||||
# List of "trusted" SMTP clients (maptype:mapname allowed) that have more
|
||||
# privileges than "strangers". If mynetworks is not specified (the default),
|
||||
# mynetworks_style is used to compute its value.
|
||||
#mynetworks_style = class
|
||||
#mynetworks_style = subnet
|
||||
mynetworks_style = host
|
||||
#
|
||||
mynetworks = 127.0.0.0/8
|
||||
|
||||
# Uncomment the next line to generate "delayed mail" warnings
|
||||
#delay_warning_time = 4h
|
||||
|
||||
# List of domains (maptype:mapname allowed) that this machine considers
|
||||
# itself the final destination for.
|
||||
mydestination = @MYDESTINATION@
|
||||
|
||||
# Maximum size of a user mailbox
|
||||
mailbox_size_limit = 51200000
|
||||
|
||||
# Optional external command to use instead of mailbox delivery. If set,
|
||||
# you must set up an alias to forward root mail to a real user.
|
||||
#mailbox_command = /usr/bin/procmail
|
||||
#mailbox_command = /usr/bin/procmail -a "$EXTENSION"
|
||||
mailbox_command =
|
||||
|
||||
# List of alias maps to use to lookup local addresses.
|
||||
# Per Debian Policy it should be /etc/aliases.
|
||||
alias_maps = $alias_database, nis:mail.aliases
|
||||
|
||||
# List of alias maps to make indexes on, when running newaliases.
|
||||
alias_database = hash:/etc/aliases
|
||||
|
||||
# Notify (or not) local biff service when new mail arrives.
|
||||
# Rarely used these days.
|
||||
biff = no
|
||||
|
||||
# Separator between user name and address extension (user+foo@domain)
|
||||
#recipient_delimiter = +
|
||||
recipient_delimiter =
|
||||
|
||||
# A host to send "other" mail to
|
||||
#relayhost = $mydomain
|
||||
#relayhost = [gateway.example.com]
|
||||
#relayhost = [ip.add.re.ss]:port
|
||||
#relayhost = uucphost
|
||||
relayhost =
|
||||
|
||||
# Where to look for Cyrus SASL configuration files. Upstream default is unset
|
||||
# (use compiled-in SASL library default), Debian Policy says it should be
|
||||
# /etc/postfix/sasl.
|
||||
cyrus_sasl_config_path = /etc/postfix/sasl
|
||||
|
||||
authorized_submit_users = root
|
||||
data_directory = /var/lib/postfix-srs-delivery
|
||||
html_directory = /usr/share/doc/postfix/html
|
||||
master_service_disable =
|
||||
queue_directory = /var/spool/postfix-srs-delivery
|
||||
readme_directory = /usr/share/doc/postfix
|
||||
multi_instance_group = srs-delivery
|
||||
multi_instance_name = postfix-srs-delivery
|
||||
inet_interfaces = loopback-only
|
||||
default_transport = smtp
|
||||
local_transport = error:SRS-LOCAL-DELIVERY-BLOCKED
|
||||
mailbox_transport = error:SRS-MAILBOX-DELIVERY-BLOCKED
|
||||
relay_transport = error:SRS-RELAY-DELIVERY-BLOCKED
|
||||
virtual_transport = srs-lmtp:unix:/var/spool/postfix/private/dovecot-lmtp
|
||||
virtual_alias_maps = @VIRTUAL_ALIAS_MAPS@
|
||||
virtual_alias_domains = @VIRTUAL_ALIAS_DOMAINS@
|
||||
virtual_mailbox_maps = @VIRTUAL_MAILBOX_MAPS@
|
||||
virtual_mailbox_domains = @VIRTUAL_MAILBOX_DOMAINS@
|
||||
relay_domains = @RELAY_DOMAINS@
|
||||
transport_maps = btree:/etc/postfix-srs/delivery/transport
|
||||
mydomain = @MYDOMAIN@
|
||||
myhostname = @MYHOSTNAME@
|
||||
2bounce_notice_recipient = postmaster
|
||||
bounce_notice_recipient = postmaster
|
||||
delay_notice_recipient = postmaster
|
||||
error_notice_recipient = postmaster
|
||||
notify_classes =
|
||||
smtp_bind_address = @SMTP_BIND_ADDRESS@
|
||||
smtp_bind_address6 = @SMTP_BIND_ADDRESS6@
|
||||
smtp_dns_support_level = @SMTP_DNS_SUPPORT_LEVEL@
|
||||
smtp_host_lookup = @SMTP_HOST_LOOKUP@
|
||||
smtp_tls_CAfile = @SMTP_TLS_CAFILE@
|
||||
smtp_tls_mandatory_protocols = @SMTP_TLS_MANDATORY_PROTOCOLS@
|
||||
smtp_tls_protocols = @SMTP_TLS_PROTOCOLS@
|
||||
smtp_tls_security_level = @SMTP_TLS_SECURITY_LEVEL@
|
||||
config_directory = /etc/postfix-srs/delivery
|
||||
@@ -0,0 +1,199 @@
|
||||
#
|
||||
# Postfix master process configuration file. For details on the format
|
||||
# of the file, see the master(5) manual page (command: "man 5 master" or
|
||||
# on-line: https://www.postfix.org/master.5.html).
|
||||
#
|
||||
# Do not forget to execute "postfix reload" after editing this file.
|
||||
#
|
||||
# ==========================================================================
|
||||
# service type private unpriv chroot wakeup maxproc command + args
|
||||
# (yes) (yes) (no) (never) (100)
|
||||
# ==========================================================================
|
||||
#smtp inet n - y - - smtpd
|
||||
#smtp inet n - y - 1 postscreen
|
||||
#smtpd pass - - y - - smtpd
|
||||
#dnsblog unix - - y - 0 dnsblog
|
||||
#tlsproxy unix - - y - 0 tlsproxy
|
||||
# Choose one: enable submission for loopback clients only, or for any client.
|
||||
#127.0.0.1:submission inet n - y - - smtpd
|
||||
#submission inet n - y - - smtpd
|
||||
# -o syslog_name=postfix/submission
|
||||
# -o smtpd_forbid_unauth_pipelining=no
|
||||
# -o smtpd_tls_security_level=encrypt
|
||||
# -o smtpd_sasl_auth_enable=yes
|
||||
# -o smtpd_tls_auth_only=yes
|
||||
# -o local_header_rewrite_clients=static:all
|
||||
# -o smtpd_hide_client_session=yes
|
||||
# -o smtpd_reject_unlisted_recipient=no
|
||||
# Instead of specifying complex smtpd_<xxx>_restrictions here,
|
||||
# specify "smtpd_<xxx>_restrictions=$mua_<xxx>_restrictions"
|
||||
# here, and specify mua_<xxx>_restrictions in main.cf (where
|
||||
# "<xxx>" is "client", "helo", "sender", "relay", or "recipient").
|
||||
# -o smtpd_client_restrictions=
|
||||
# -o smtpd_helo_restrictions=
|
||||
# -o smtpd_sender_restrictions=
|
||||
# -o smtpd_relay_restrictions=
|
||||
# -o smtpd_recipient_restrictions=permit_sasl_authenticated,reject
|
||||
# -o milter_macro_daemon_name=ORIGINATING
|
||||
# Choose one: enable submissions for loopback clients only, or for any client.
|
||||
#127.0.0.1:submissions inet n - y - - smtpd
|
||||
#submissions inet n - y - - smtpd
|
||||
# -o syslog_name=postfix/submissions
|
||||
# -o smtpd_forbid_unauth_pipelining=no
|
||||
# -o smtpd_tls_wrappermode=yes
|
||||
# -o smtpd_sasl_auth_enable=yes
|
||||
# -o local_header_rewrite_clients=static:all
|
||||
# -o smtpd_hide_client_session=yes
|
||||
# -o smtpd_reject_unlisted_recipient=no
|
||||
# Instead of specifying complex smtpd_<xxx>_restrictions here,
|
||||
# specify "smtpd_<xxx>_restrictions=$mua_<xxx>_restrictions"
|
||||
# here, and specify mua_<xxx>_restrictions in main.cf (where
|
||||
# "<xxx>" is "client", "helo", "sender", "relay", or "recipient").
|
||||
# -o smtpd_client_restrictions=
|
||||
# -o smtpd_helo_restrictions=
|
||||
# -o smtpd_sender_restrictions=
|
||||
# -o smtpd_relay_restrictions=
|
||||
# -o smtpd_recipient_restrictions=permit_sasl_authenticated,reject
|
||||
# -o milter_macro_daemon_name=ORIGINATING
|
||||
#628 inet n - y - - qmqpd
|
||||
pickup unix n - y 60 1 pickup
|
||||
cleanup unix n - y - 0 cleanup
|
||||
qmgr unix n - n 300 1 qmgr
|
||||
#qmgr unix n - n 300 1 oqmgr
|
||||
tlsmgr unix - - y 1000? 1 tlsmgr
|
||||
rewrite unix - - y - - trivial-rewrite
|
||||
bounce unix - - y - 0 bounce
|
||||
defer unix - - y - 0 bounce
|
||||
trace unix - - y - 0 bounce
|
||||
verify unix - - y - 1 verify
|
||||
flush unix n - y 1000? 0 flush
|
||||
proxymap unix - - n - - proxymap
|
||||
proxywrite unix - - n - 1 proxymap
|
||||
#smtp unix - - y - - smtp
|
||||
#relay unix - - y - - smtp
|
||||
# -o syslog_name=${multi_instance_name?{$multi_instance_name}:{postfix}}/$service_name
|
||||
# -o smtp_helo_timeout=5 -o smtp_connect_timeout=5
|
||||
showq unix n - y - - showq
|
||||
error unix - - y - - error
|
||||
retry unix - - y - - error
|
||||
discard unix - - y - - discard
|
||||
#local unix - n n - - local
|
||||
#virtual unix - n n - - virtual
|
||||
#lmtp unix - - y - - lmtp
|
||||
anvil unix - - y - 1 anvil
|
||||
scache unix - - y - 1 scache
|
||||
postlog unix-dgram n - n - 1 postlogd
|
||||
#
|
||||
# ====================================================================
|
||||
# Interfaces to non-Postfix software. Be sure to examine the manual
|
||||
# pages of the non-Postfix software to find out what options it wants.
|
||||
#
|
||||
# Many of the following services use the Postfix pipe(8) delivery
|
||||
# agent. See the pipe(8) man page for information about ${recipient}
|
||||
# and other message envelope options.
|
||||
# ====================================================================
|
||||
#
|
||||
# maildrop. See the Postfix MAILDROP_README file for details.
|
||||
# Also specify in main.cf: maildrop_destination_recipient_limit=1
|
||||
#
|
||||
#maildrop unix - n n - - pipe
|
||||
# flags=DRXhu user=vmail argv=/usr/bin/maildrop -d ${recipient}
|
||||
#
|
||||
# ====================================================================
|
||||
#
|
||||
# Recent Cyrus versions can use the existing "lmtp" master.cf entry.
|
||||
#
|
||||
# Specify in cyrus.conf:
|
||||
# lmtp cmd="lmtpd -a" listen="localhost:lmtp" proto=tcp4
|
||||
#
|
||||
# Specify in main.cf one or more of the following:
|
||||
# mailbox_transport = lmtp:inet:localhost
|
||||
# virtual_transport = lmtp:inet:localhost
|
||||
#
|
||||
# ====================================================================
|
||||
#
|
||||
# Cyrus 2.1.5 (Amos Gouaux)
|
||||
# Also specify in main.cf: cyrus_destination_recipient_limit=1
|
||||
#
|
||||
#cyrus unix - n n - - pipe
|
||||
# flags=DRX user=cyrus argv=/cyrus/bin/deliver -e -r ${sender} -m ${extension} ${user}
|
||||
#
|
||||
# ====================================================================
|
||||
#
|
||||
# Old example of delivery via Cyrus.
|
||||
#
|
||||
#old-cyrus unix - n n - - pipe
|
||||
# flags=R user=cyrus argv=/cyrus/bin/deliver -e -m ${extension} ${user}
|
||||
#
|
||||
# ====================================================================
|
||||
#
|
||||
# See the Postfix UUCP_README file for configuration details.
|
||||
#
|
||||
#uucp unix - n n - - pipe
|
||||
# flags=Fqhu user=uucp argv=uux -r -n -z -a$sender - $nexthop!rmail ($recipient)
|
||||
#
|
||||
# ====================================================================
|
||||
#
|
||||
# Other external delivery methods.
|
||||
#
|
||||
#ifmail unix - n n - - pipe
|
||||
# flags=F user=ftn argv=/usr/lib/ifmail/ifmail -r $nexthop ($recipient)
|
||||
#
|
||||
#bsmtp unix - n n - - pipe
|
||||
# flags=Fq. user=bsmtp argv=/usr/lib/bsmtp/bsmtp -f $sender $nexthop $recipient
|
||||
#
|
||||
#scalemail-backend unix - n n - 2 pipe
|
||||
# flags=R user=scalemail argv=/usr/lib/scalemail/bin/scalemail-store
|
||||
# ${nexthop} ${user} ${extension}
|
||||
#
|
||||
#mailman unix - n n - - pipe
|
||||
# flags=FRX user=list argv=/usr/lib/mailman/bin/postfix-to-mailman.py
|
||||
# ${nexthop} ${user}
|
||||
|
||||
# SRS reinjection - loopback only, no alias expansion
|
||||
127.0.0.1:10028 inet n - y - - smtpd
|
||||
-o syslog_name=postfix-srs-delivery/reinject
|
||||
-o receive_override_options=no_address_mappings,no_unknown_recipient_checks
|
||||
-o smtpd_recipient_restrictions=permit_mynetworks,reject
|
||||
-o mynetworks=127.0.0.0/8
|
||||
|
||||
# SRS reverse cleanup - envelope recipients only, no virtual alias expansion
|
||||
srs-reverse-cleanup unix n - y - 0 cleanup
|
||||
-o syslog_name=postfix-srs-delivery/reverse-cleanup
|
||||
-o recipient_canonical_maps=socketmap:inet:127.0.0.1:10003:reverse
|
||||
-o recipient_canonical_classes=envelope_recipient
|
||||
-o virtual_alias_maps=
|
||||
-o canonical_maps=
|
||||
-o sender_canonical_maps=
|
||||
|
||||
# SRS reverse listener - loopback only
|
||||
|
||||
# SRS reverse recipient verification policy
|
||||
127.0.0.1:10029 inet n - y - - smtpd
|
||||
-o syslog_name=postfix-srs-delivery/reverse-smtpd
|
||||
-o cleanup_service_name=srs-reverse-cleanup
|
||||
-o content_filter=
|
||||
-o smtpd_milters=
|
||||
-o mynetworks=127.0.0.0/8
|
||||
-o smtpd_relay_restrictions=permit_mynetworks,reject
|
||||
-o smtpd_recipient_restrictions=check_policy_service,unix:private/srs-reverse-policy,reject
|
||||
-o smtpd_reject_unlisted_recipient=no
|
||||
srs-reverse-policy unix - n n - 0 spawn
|
||||
user=nobody argv=/usr/local/sbin/srs-reverse-policy.py
|
||||
|
||||
# =============================================================
|
||||
# LMTP delivery to productive Dovecot
|
||||
# =============================================================
|
||||
srs-lmtp unix - - n - - lmtp
|
||||
|
||||
# =============================================================
|
||||
# Outbound SMTP delivery
|
||||
# =============================================================
|
||||
smtp unix - - n - - smtp
|
||||
|
||||
# =============================================================
|
||||
# Internal SMTP transport for SRS reverse processing
|
||||
# =============================================================
|
||||
srs-reverse-smtp unix - - n - - smtp
|
||||
-o smtp_bind_address=127.0.0.1
|
||||
-o smtp_bind_address6=::1
|
||||
@@ -0,0 +1,13 @@
|
||||
[Unit]
|
||||
Description=PostSRSd SRS Service
|
||||
After=network.target
|
||||
|
||||
[Service]
|
||||
Type=simple
|
||||
ExecStart=/usr/local/postsrsd/sbin/postsrsd -C /etc/postsrsd-srs/postsrsd.conf
|
||||
Restart=on-failure
|
||||
RestartSec=5
|
||||
NoNewPrivileges=true
|
||||
|
||||
[Install]
|
||||
WantedBy=multi-user.target
|
||||
@@ -0,0 +1,7 @@
|
||||
domains = {}
|
||||
srs-domain = "@SRS_DOMAIN@"
|
||||
socketmap = inet:127.0.0.1:10003
|
||||
secrets-file = "/etc/postsrsd-srs/secret"
|
||||
milter-rewrite-local = off
|
||||
original-envelope = embedded
|
||||
debug = off
|
||||
@@ -0,0 +1,19 @@
|
||||
[Unit]
|
||||
Description=Domain-restricted SRS reverse socketmap
|
||||
After=network.target postsrsd-srs.service
|
||||
Wants=postsrsd-srs.service
|
||||
|
||||
[Service]
|
||||
Type=simple
|
||||
User=nobody
|
||||
Group=nogroup
|
||||
ExecStart=/usr/bin/python3 /usr/local/sbin/srs-reverse-map.py
|
||||
Restart=on-failure
|
||||
RestartSec=3
|
||||
NoNewPrivileges=true
|
||||
ProtectSystem=strict
|
||||
ProtectHome=true
|
||||
PrivateTmp=true
|
||||
|
||||
[Install]
|
||||
WantedBy=multi-user.target
|
||||
@@ -0,0 +1,2 @@
|
||||
# SRS-Bounces zurück an den produktiven Postfix
|
||||
@SRS_DOMAIN@ srs-reverse-smtp:[127.0.0.1]:10029
|
||||
Reference in New Issue
Block a user