My name's Todd, and I'm having some SMTP server security issues. I am running Postfix on my Debian VPS and I am trying to disable Postfix from being publically used by anybody except those with webmail.
I read Postfix's configuration at Postfix.org, but I couldn't find anything that I thought to be relevent to this situation. Do any of you have suggestions or ways to fix this? Besides disabling e-mail all together?
As another detail, I'm running Postfix on its original config, not through a MySQL database config.