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503 Polite people say HELO first

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I’m running Exchange 5.5 with SP3. I can send to every address except one. That server will except mail from everyone except me.

SMTP LOG:
05/22/2000 11:36:13 AM : A connection to 208.198.163.2 was established.
05/22/2000 11:36:13 AM : <<< 220firewall SMTPXD version 57 ready at Mon, 22 May 2000 Central Daylight Time 05/22/2000 11:36:13 AM : >>> EHLO mail_server.leeperderose.com

05/22/2000 11:36:14 AM : <<< 200 OK 05/22/2000 11:36:14 AM : >>> MAIL FROM:
05/22/2000 11:36:14 AM : <<< 503 please introduce yourself, first 05/22/2000 11:36:14 AM : >>> QUIT

05/22/2000 11:36:14 AM : <<< 221 firewall closing connection I also have 2 domain names on 1 IP address, both using the same Exchange Server.

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503 Polite people say HELO first

In reply to 503 Polite people say HELO first

SMTP error 503 usually indicates an invalid command sequence, but it could also be caused by incorrect network settings on the workstation.

Have a look at
http://8help.ohio-state.edu/33278.html
and
http://wso.williams.edu/listserv/eudora-win/Mar1199-Mar2199/msg00007.html

PS If these don’t work, there i ssupposedly a way to reject an answer, leave a comment, and keep the thread open so you don’t have to repost.

503 Polite people say HELO first

In reply to 503 Polite people say HELO first

The sites listed didn’t help my situation, but they make a good reference for future use.

503 Polite people say HELO first

In reply to 503 Polite people say HELO first

Well I just telnetted to the SMTP port of that server (208.198.163.2) and it’s response to the EHLO command was “500 command not recognized”. Can Exchange be configured to send a HELO instead of EHLO? (EHLO stands for Extended HELO).

503 Polite people say HELO first

In reply to 503 Polite people say HELO first

I disabled outbound ESMTP on my server, and it works when sending mail to that server. I did get an interesting message in my log though; “250 Hello leeperderose.com, why did you call yourself mail_server.leeperderose.com”

I still don’t understand why that server won’t take my “EHLO”.

FYI: Disabling ESMTP is in TechNet Q194132.

503 Polite people say HELO first

In reply to 503 Polite people say HELO first

It sounds like the mail server you are attempting to communicate with is expecting only standard SMTP and your system is sending ESMTP.

Interesting dilemma and I appreciated the chance to take a look at it.

regards!

paul

503 Polite people say HELO first

In reply to 503 Polite people say HELO first

See above note. BTW, these two fine people were MUCH more helpful than the people that couldn’t receive my mail!
(Paul sent numerous emails)
Thanks again!
Kirk

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