Don,
Well, it is a bit hard to say which end is the cause of the problem. First,
the receiving server is ESMTP, so it should recognize the EHLO command and
respond, but the 502 response indicates 'Command not implemented', which
IMail would normally get from an non-ESMTP server, so it issues the HELO
(SMTP) command. Now the remote thinks it got both EHLO and HELO and fails
(but why did it sent the 502, if it recognized the EHLO??).
To me these symptoms, could indicate some transient problem in the data
stream, corrupting the data IMail is sending or remote is receiving. My
guess is it is not either email system, but some problem with the
connection/packet structure or something similiar. My experience tells me it
is probably related to MTU somewhere on your portion of the network. So I'd
tell you to make sure MTU is set for 576 on your router and any other
devices that connect you to the 'net.
The only other way to find out more is to sniff the packets between you and
the remote server and see what that can tell you.
I'm also having some trouble getting DNS data for 'theplanet.com' (could be
me, but other domains I try, get good data), but using the IP from the log,
I can connect to the mail server. It is possible the problem is at the
remote end, but if you see problems sending email to other domains, with
similiar symptoms, I'd say the problem is at your end.
Daniel Donnelly
Ipswitch Technical Support
________________________________________________________
See our Knowledge Base at http://support.ipswitch.com/kb
----- Original Message -----
From: "Don Brown" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Tuesday, July 18, 2000 9:31 AM
Subject: Re: [IMail Forum] ERR 503 - Duplicate HELO/EHLO
> The dialog looks O.K., BUT, the sender gets a bounced mail message from
the
> Postmaster/Us and the log does show that the message was NOT
> delivered. See below --
>
> I get these from other mail servers, as well. Which mail server has the
> problem (us or them)?
>
>
> 07:17 12:49 SMTP-(00000608) >MAIL FROM:<[EMAIL PROTECTED]>
> --> 07:17 12:49 SMTP-(00000608) 503 mail1.theplanet.com Duplicate
HELO/EHLO
> --> 07:17 12:49 SMTP-(00000608) ERR undeliverable 503 mail1.theplanet.com
> Duplicate HELO/EHLO
> 07:17 12:49 SMTP-(00000608) SMTP_DELIV_FAILED
> 07:17 12:49 SMTP-(00000608) >QUIT
> 07:17 12:49 SMTP-(00000608) 250 <[EMAIL PROTECTED]>... Sender ok
> --> 07:17 12:49 SMTP-(00000608) Creating message from Postmaster
> 07:17 12:49 SMTP-(00000608) finished d:\imail\spool\Q5d8472d.FWD status=2
>
> Date: Mon, 17 Jul 2000 12:49:46 -0500
> From: "Postmaster" <[EMAIL PROTECTED]>
> Sender: <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Subject: Undeliverable Mail
> undeliverable to [EMAIL PROTECTED]
>
> Original message follows.
> Received: from SMTP32-FWD by Riccione.com
> (SMTP32) id A000005D8; Mon, 17 Jul 2000 12:49:33 -0500
> Received: from [216.234.234.32] by mail.inetconcepts.net
> (SMTPD32-6.00) id A707F0116; Mon, 17 Jul 2000 12:48:55 -0500
> Received: from [207.55.152.35] ([207.55.152.35])
> by mail1.theplanet.com (8.8.8/8.8.7) with ESMTP id MAA05383
> for <[EMAIL PROTECTED]>; Mon, 17 Jul 2000 12:54:41 -0500 (CDT)
> Mime-Version: 1.0
> X-Sender: [EMAIL PROTECTED]
> Message-Id: <p04320409b598f8a0a77f@[207.55.152.35]>
> Date: Mon, 17 Jul 2000 12:54:04 -0500
> To: [EMAIL PROTECTED]
> From: Nick Riccione <[EMAIL PROTECTED]>
> Subject: Fwd: Undeliverable Mail
> Content-Type: text/plain; charset="us-ascii" ; format="flowed"
>
>
> At 06:29 AM 7/18/00, you wrote:
> > > 07:17 12:41 SMTP-(000004C4) >EHLO mail.inetconcepts.net
> > > 07:17 12:41 SMTP-(000004C4) 502
> > > 07:17 12:41 SMTP-(000004C4) >HELO mail.inetconcepts.net
> >
> >We say EHLO
> >They say no
> >We say HELO
> >and away we go.
> >
> >Their server "Sendmail 8.8.8/8.8.7" just doesn't speak EHLO.
> >
> > From RFC 821: "502 Command not implemented"
> >
> >The SMTP protocol is working great on both ends. ie, no problem
anwyhere.
> >
> >Len
> >
> >http://BIND8NT.MEIway.com: ISC BIND 8.2.2 p5 installable binary for NT4
> >http://IMGate.MEIway.com: Build free, hi-perf, anti-spam mail gateways
> >
> >Please visit http://www.ipswitch.com/support/mailing-lists.html to be
> >removed from this list.
> >
> >An Archive of this list is available at:
> >http://www.mail-archive.com/imail_forum%40list.ipswitch.com/
>
> --
> Don Brown - Dallas, Texas USA Internet Concepts, Inc.
> [EMAIL PROTECTED] http://www.inetconcepts.net
> PGP Key ID: 04C99A55 (972) 788-2364 Fax: (972) 788-5049
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> --
>
> Please visit http://www.ipswitch.com/support/mailing-lists.html
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>
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>
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