Originally Posted by Hagforce
Is there any way to see what messages are beeing sent out from my server, from witch adress, subject, reciever, IP adr etc.
It's all in your mail log. If you have lots of activity there that could be a sign of spam (unless your mail server is usually busy anyway). You can also check the mail queue:
If you see lots of mails there, this could also be a sign of spam abuse.
Then you can check of your server is blacklisted:
Also make sure that your mynetworks setting allows unauthenticated sending only from localhost. What's the output of
postconf -d | grep mynetworks
postconf -n | grep mynetworks