If you use your exchange server 25 port directly (who doing this.. except me till today (IMF and his buddy IMFcomanion)), and you wanna put your Spamsnake
gateway in your network between exchange, need this settings:
port forward 25 tcp port to your Spamsnake
Exchange relay access Spamsnake
1.) Change the exchange -> Servers -> SMTP -> Default SMTP Virtual Server
-> delivery -> advanced
2.) Change fully-qualified-domain-name to different a real FQDN mail name - its owned by SpamSnake right now -
(mail.domain.ltd) to (ADname or something else)
- optional: you can set smarthost here...
3.) restart smtp
4.) Verify smtp name:
telnet localhost 25
220 (new name) Microsoft ESMTP MAIL Service, Version: 6.0.xxxx.xxxx ready at ...time...
... from postfix you won't get "greeted me with my own hostname" error message.
Real admins never put out exchange port directly the net ...(im not a prof admin, please correct/validate me, if i typed wrong/correct tip here)... but
trivial, maybe useful for somebody.
to learn, to learn, to learn - Lenin