Merge branch 'master' of git.oopen.de:install/mailsystem

install_postfix_advanced.sh

@@ -2308,6 +2308,10 @@ smtpd_client_restrictions =
    # Whitelist clients
    #
    check_client_access btree:/etc/postfix/client_whitelist
+   # White- / Blacklisting
+   #
+   check_sender_access btree:/etc/postfix/access_sender,
+   check_recipient_access btree:/etc/postfix/access_recipient,
    # RBL check - !! comment out if postcreens postscreen_dnsbl_sites is in use
    # Whitelist (configured at a.ns.oopen.de)
    #
@@ -2784,6 +2788,31 @@ fi
 echononl "   Create file \"access_sender\""
 if [[ ! -f /etc/postfix/access_sender ]]; then
 	cat <<EOF > /etc/postfix/access_sender
+# -----
+# /etc/postfix/sender_checks
+#
+# Restricts sender addresses this system accepts in MAIL FROM commands.
+#
+#     Define the whitelist or blacklist with and OK or REJECT, 
+#     followed by an optional answer text. 
+#
+#
+#  Note:
+#
+#     Checks from this file are already applied by 'smtpd_client_restrictions'!
+#
+#
+# Example:
+#
+#     example.com              REJECT env. from addr any@example.com rejected
+#     .example.com             REJECT env. from addr any@sub.example.com rejected
+#     user@example.com         REJECT We don't want your email
+#     example2.com             OK
+# -----
+
+# - Whitelist for sender adresses
+# -
+
 # - bekannte Virus/Spam Absener blocken
 # -