[Mimedefang] "Command unrecognized" when doing tempfail

Dave O'Neill dmo at roaringpenguin.com
Sat May 26 08:49:14 EDT 2007


On Sat, May 26, 2007 at 03:31:17AM -0400, Oliver Schulze L. wrote:
> I'm doing some action_tempfail() on some emails and I'm seeing this
> in my sendmail log:
> 
> May 26 03:17:54 mail mimedefang.pl[10796]: filter: l4Q7HrlS021893:  
> tempfail=1
> May 26 03:17:54 mail mimedefang[31837]: l4Q7HrlS021893: Tempfailing 
> because filter instructed us to
> May 26 03:17:54 mail mimedefang[31837]: l4Q7HrlS021893: Filter time is 208ms
> May 26 03:17:54 mail sendmail[21893]: l4Q7HrlS021893: 
> to=<olipop at example.com>, delay=00:00:01, pri=31391, stat=Command 
> unrecognized: "XXXX HELO_STRING"
> 
> HELO_STRING here is the string that appears in the email header.

Your SMTP connection is going through someone's Cisco PIX, with "smtp
fixup" enabled.  This "feature" blows away any SMTP command it doesn't
recognize -- including most of ESMTP, since it doesn't understand EHLO.

If it's on your end, disable it ("no fixup protocol smtp 25" at your
Cisco prompt, I believe).  If it's on the sender's end, there's not much
you can do about it.

Cheers,
Dave
-- 
Dave O'Neill <dmo at roaringpenguin.com>    Roaring Penguin Software Inc.
+1 (613) 231-6599                        http://www.roaringpenguin.com/
For CanIt technical support, please mail: support at roaringpenguin.com



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