Dr. Wietse,
Thank you for your valuable time, not just for this question, but for the
entire postfix product.
If I understood you correctly, increasing the hop count limit may help in this
case. I only see 1 or 2 headers that are being added, but I am not sure. I can
try changing the limit and then seeing the effect.
Thank you again.
> Subject: Re: Unable to relay via postfix ... but telnet works...?
> To: postfix-users@postfix.org
> Date: Fri, 17 Feb 2012 14:52:41 -0500
> From: wie...@porcupine.org
>
> A. Abd-Allah:
> > Final-Recipient: rfc822;bob@gmail.comAction: failedStatus:
> > 5.0.0Remote-MTA: smtp;MAILGW1.OURDOMAIN.COMDiagnostic-Code: X-Notes;
> > Error transferring to MAILGW1.OURDOMAIN.COM; Maximum hop count
> > exceeded. Message probably in a routing loop.
>
> When a mail server receives mail via SMTP, the standard requires
> that it adds a header with:
>
> Received: ....stuff.....
>
> Many MTAs count the number of such message header lines and report
> a "Maximum hop count exceeded" error because the number exceeds
> some upper bound.
>
> With Postfix, the default is "hopcount_limit = 50".
>
> Your "telnet" message had no such header, while the "non telnet"
> message presumably had several. That's why one triggers the
> error and the other does not.
>
> Wietse
