I'm looking for some advice, what I should to check at my brand new mail-server for it's correct behavior. /saying behavior, because it is working - just but want be sure than it is working correctly./
I don't want get blacklisted only because, for example I forgot disallow plaintext auth.
swaks for verifying functionality "from the internet side".
As first comes to my mind:
- open relay - should be not allowed
- as I say above - disallowed plain text auth - allow only over tls.
- try deliver to nonexistent local user - should fail
- verify delivery (existence) of the postmaster and abuse aliases (some other is recommented to have?)
swaks --to .. --from .. --auth-user name --auth-password pass --protocol SMTP ^^^^^^^^^^^^^
If this fails, with the message
*** Host did not advertise authentication is enough OK for the 2.?
Any other ideas what I must/should verify? The
swaks is great tool - if you know how to use it :) Using "exim" as MTA. What is your favorite swaks tip?