rejected RCPT, authentication required, problem

[CrustyDOD]

Hey,

One of the domains that i have on my server is having problems sending out emails. They can receive them but cannot send them. They can only send to email that is on their domain.

I've tested with other domains on the server and all of them are working. It's just one of them having problems.

2010-04-16 17:22:10 H=IP (deltad8327fa69) [IP] F=<[email protected]> rejected RCPT <[email protected]>: authentication required
2010-04-16 17:22:10 H=IP (deltad8327fa69) [IP] incomplete transaction (RSET) from <[email protected]>

The "[email protected]" is on different server, not mine.

His domain is the only one that's producing this error. Everything else works.

Now, might the problem be that I turned off Clamav today? I hashed some lines:

#av_scanner = clamd:/var/run/clamav/clamd

# ACL that is used after the DATA command
check_message:
deny message = This message contains malformed MIME ($demime_reason)
demime = *
condition = ${if >{$demime_errorlevel}{2}{1}{0}}
#deny message = This message contains a virus or other harmful content ($malware_name)
#demime = *
#malware = *
deny message = This message contains an attachment of a type which we do not accept (.$found_extension)
demime = bat:com:pif:prf:scr:vbs
warn message = X-Antivirus-Scanner: Clean mail though you should still use an Antivirus
  accept

It's strange tho, if everything else is working, all other emails, why isn't his? Well, its working if he is sending it to himself but not to domains not on the same server.

Any ideas?

 

[nobaloney]

If you're going to disable ClamAV you need to comment out entire sections, not just certain lines. But I haven't studied your changes so I don't know if that's the problem or not.

The problem appears to be that authentication required note in the logs. Submission of email for relay should be made on port 587, with plaintext authentication.

Jeff