Spam? need help finding out were spam can come from

[noimad1]

I have been searching and searching to see if our server is being spammed. I have grepped through a bunch of the logs and such, but don't see any formmail stuff being sent out.

I just don't know all of the ways the spammers could be sending out mail. Can anyone list all of the different things to look for spam?

For example, I see a bunch of these in my mail statistics:

1 [email protected] R=lookuphost T=remote_smtp:
SMTP error from remote mailer after RCPT TO::
host mailin-02.mx.aol.com [64.12.137.184]: 550 MAILBOX NOT FOUND

2 [email protected] R=lookuphost T=remote_smtp:
SMTP error from remote mailer after RCPT TO::
host mailin-04.mx.aol.com [152.163.224.122]: 550 MAILBOX
NOT FOUND

2 [email protected] R=lookuphost T=remote_smtp:
SMTP error from remote mailer after RCPT TO::
host mailin-04.mx.aol.com [205.188.156.154]: 550 MAILBOX
NOT FOUND

1 [email protected] R=lookuphost T=remote_smtp:
SMTP error from remote mailer after RCPT TO::
host mailin-04.mx.aol.com [64.12.138.89]: 550 MAILBOX NOT FOUND

they just seem to fill up my mail statics with errors. I am wondering how I can track where this is actually comming from? It just always seems to be a random [email protected]....

cPanel.net Support Ticket Number:

 

[noimad1]

here is something else I found in my exim_rejected log file..:

2003-05-31 06:59:38 refused relay (host) to <[email protected]> from <[email protected]> H=pool-141-157-201-15.ny325.e
ast.verizon.net (mailin-02.mx.aol.com) [141.157.201.15]


I have about a thousand of those, all going to different address's, but from the same person. I am assuming since it is in the rejected log I don't have to worry about these ones?

cPanel.net Support Ticket Number: