AOL Customers

[Paul Howarth]

On Sun, 2006-04-09 at 20:34 -0400, CodeHeads wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
> 
> Hello all,
> 
> I was wandering if any of you email server admins has gotten this as a
> bounce back from AOL:
> 
> [snip]
> Reason: SMTP transmission failure has occurred
> Diagnostic code: smtp;554-:  (RLY:CS4)
> http://postmaster.info.aol.com/errors/421rlycs4.html TRANSACTION FAILED
> Remote system: dns;mailin-04.mx.aol.com
> (TCP|206.46.252.46|48839|64.12.138.89|25) (rly-xl02.mx.aol.com ESMTP
> mail_relay_in-xl2.5; Sun, 09 Apr 2006 17:39:23 -0400)
> [/snip]
> 
> I know AOL stinks LOL but is it them or me??  I did a chkrootkit and
> scanned some other things and found nothing. I emptied the virus
> quarantine directory.
> 
> This was from the web server authing against my ISP SMTP server.  I
> changed it to auth against my mail server and it appears to be working
> now.  Am I missing something?  I am mostly curious as to what is up :)

The URL referenced in the rejection suggests that this is a
content-based rejection, Maybe AOL are rejecting mail from some
commonly-compromised web apps? Strange though that the mail should go
through if you send it via your own mail server and not your ISP's.

Paul.