I would just like to start this post by saying IRC is useless, so lets see if you guys can be of any better use.

I just installed a postfix server on my CentOS box. Now I get this error in the logs any time something tries to connect on port 25.



Anybody have any guesses on where I need to be looking for what to fix?

Blasphemy! *throws holy water on him*

I suppose the large IRC channels are worthless, though.

Is this running in a chroot enviornment? (I know debian does, which can be a pain in the ass)

It might be a problem with postfix + it's version of your hosts file. (I had a similar error, and making sure my two hosts files worked fixed it).

Is this error in /var/log/mail.log? Or in another log file? mail.err might give you more information if mail.log doesn't

Does 'postfix check' come up with anything?

It's a shot in the dark, but "per-process" seems to suggest a problem with your limits.conf file (nproc).

'postfix -vv' might be helpful as well

I fixed it. and IRC sucks.

Not going to tell us how you fixed it, in case we ever run into this exact problem?

Lets just put is this way,if you actually follow the instructions on the install guide you wont run into the problem.