install_postfix_advanced.sh: add SPF sender whitelist configuration

DOC/README.test_mailprotocols

@@ -36,9 +36,52 @@ openssl s_client -crlf -connect ${mailserver}:993
 openssl s_client -crlf -starttls imap -connect ${mailserver}:143
 
 
+# Force IPv4
+openssl s_client -crlf -starttls smtp -4 -connect ${mailserver}:25 [-state -debug]
+openssl s_client -crlf -starttls smtp -4 -connect ${mailserver}:587
+openssl s_client -crlf -4 -connect ${mailserver}:465
+openssl s_client -crlf -4 -connect ${mailserver}:995
+openssl s_client -crlf -starttls pop3 -4 -connect ${mailserver}:110
+openssl s_client -crlf -4 -connect ${mailserver}:993
+openssl s_client -crlf -starttls imap -4 -connect ${mailserver}:143
+
+
 # Test RSA based TLS connection
 #
 echo "quit" | openssl s_client -connect ${mailserver}:25 -starttls smtp -tls1_2 -cipher ECDHE-RSA-AES256-GCM-SHA384
 
 echo "quit" | openssl s_client -connect ${mailserver}:25 -starttls smtp -tls1_2
 echo "quit" | openssl s_client -connect ${mailserver}:25 -starttls smtp
+
+
+# ---
+
+
+# Test tracerout TCP
+#
+# allgemein:
+traceroute -T mail.oopen.de
+
+# speziell die mailuser ports:
+traceroute -T -p 587 mail.oopen.de
+traceroute -T -p 465 mail.oopen.de
+traceroute -T -p 110 mail.oopen.de
+traceroute -T -p 995 mail.oopen.de
+traceroute -T -p 143 mail.oopen.de
+traceroute -T -p 993 mail.oopen.de
+
+
+# Force IPv4
+
+# allgemein:
+traceroute -4 -T mail.oopen.de
+
+# speziell die mailuser ports:
+traceroute -4 -T -p 587 mail.oopen.de
+traceroute -4 -T -p 465 mail.oopen.de
+traceroute -4 -T -p 110 mail.oopen.de
+traceroute -4 -T -p 995 mail.oopen.de
+traceroute -4 -T -p 143 mail.oopen.de
+traceroute -4 -T -p 993 mail.oopen.de
+
+