Preventing my postfix to send my local users spam
- by Jack
I have a postfix/dovecot mail server with 100 different users.
When they send an email they need to be authenticated.
I successfully use saslauth to achieve this.
Few days ago I had a problem. One specific user, probably with a virus or a spam-bot installed in its computer, started to send out through my server thousands of emails in few hours.
As…