Make sure to follow the rfc...
RFC 821 August 1982
Simple Mail Transfer Protocol
3.5. OPENING AND CLOSING
At the time the transmission channel is opened there is an
exchange to ensure that the hosts are communicating with the hosts
they think they are.
The following two commands are used in transmission channel
opening and closing:
HELO <SP> <domain> <CRLF>
QUIT <CRLF>
In the HELO command the host sending the command identifies
itself; the command may be interpreted as saying "Hello, I am
<domain>".
-----Original Message-----
From: Stuart Pittwood [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, June 05, 2002 7:02 AM
To: MS-Exchange Admin Issues
Subject: RE: SMTP Protocol Error
Ricki,
If I telnet into the offending mail server, I get the SMTP Banner (after a very long
wait)
If I try either EHLO or HELO I get the error the following error
220 ultra19.uk2net.com ESMTP UK2.NET - UK's Biggest Host Wed, 05 Jun 2002 13:52
:04 +0100
501 Syntactically invalid HELO argument(s)
501 Syntactically invalid EHLO argument(s)
This happens on either of the listed mail exchangers
Thanks
Stu
-----Original Message-----
From: Rickenbacher Beat [mailto:[EMAIL PROTECTED]]
Sent: 05 June 2002 12:59
To: MS-Exchange Admin Issues
Subject: AW: SMTP Protocol Error
What if you're manually sending a mail from E2K server (telnetting port 25)?
Is there a second mail server showing up in nslookup? Using this one (via
telnet and/or connector/smarthost) is also not working?
You also can try to change the internet message settings for that domain...
And then you can create a connector for this domain and change the default
settings (helo instead of ehlo etc.)
Ricki
-----Urspr�ngliche Nachricht-----
Von: Stuart Pittwood [mailto:[EMAIL PROTECTED]]
Gesendet: Mittwoch, 5. Juni 2002 13:35
An: MS-Exchange Admin Issues
Betreff: RE: SMTP Protocol Error
No, there is no error number,
just an amtp queue in retry mode with "An SMTP protocol error occurred" in
the status box.
The user eventually gets the following error back
"This message was rejected due to the current administrative policy by the
destination server. Please retry at a later time. If this fails contact
your system administrator server_03ameryparkes/local.4.3.2."
Thanks
Stu
-----Original Message-----
From: Rickenbacher Beat [mailto:[EMAIL PROTECTED]]
Sent: 05 June 2002 12:23
To: MS-Exchange Admin Issues
Subject: AW: SMTP Protocol Error
For Troublehsooting with E2K SP2 there is an option:
Q308323: How to Configure SMTP Transport to Log an Event 756 to Track
Non-Delivery Reports
Is there no error number assigned to the message you mentioned?
Ricki
-----Urspr�ngliche Nachricht-----
Von: Stuart Pittwood [mailto:[EMAIL PROTECTED]]
Gesendet: Mittwoch, 5. Juni 2002 11:59
An: MS-Exchange Admin Issues
Betreff: RE: SMTP Protocol Error
Yes,
It's just sending to this one external domain that gives me this error
Stu
-----Original Message-----
From: Stuart Tonge [mailto:[EMAIL PROTECTED]]
Sent: 05 June 2002 10:50
To: MS-Exchange Admin Issues
Subject: RE: SMTP Protocol Error
can you send email to any external address?
-----Original Message-----
From: Stuart Pittwood [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, June 05, 2002 10:43 AM
To: MS-Exchange Admin Issues
Subject: SMTP Protocol Error
Hi all,
I'm hoping you can help me with this problem.
When sending to a particular destination the queue is holding the message
with the following error, SMTP Protocol error occured. I can however, send
mail to this domain from another account (hotmail etc).
At first I thought it could be because our service provider had neglected to
add a PTR record for our mail server. Thi has now been corrected but the
problem still persists.
We are running WIn2K SP2, Exchange 2000 SP2 with the admin patch and the new
smtp patch.
Can anyone tell me what causes this? or is it exchange saying "i really
don't know why I can't send this"
How can I troubleshoot this?
any advice appreciated.
Thanks
Stu
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