Re: Echange 2003 SMTP problem

Tech-Archive recommends: Repair Windows Errors & Optimize Windows Performance

On Fri, 21 Aug 2009 05:30:01 -0700, Filippos
<Filippos@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote:

Hello

We have a problem when we send Email to a specific domain.
Messages are undelivered and we receive back an Email message:

Undeliverable:
Your message did not reach some or all of the intended recipients.

The following recipient(s) could not be reached:

user@xxxxxxxxxx on 20/8/2009 4:53 ??
You do not have permission to send to this recipient. For
assistance, contact your system administrator.
<mailserver.mydomain.com #5.7.1 smtp;550 5.7.1
<mailserver.mydomain.com>: Helo command rejected: Host not found>

What does your server send as its name in the HELO or EHLO command? It
look like they're checking the value against DNS and not finding it.
---
Rich Matheisen
MCSE+I, Exchange MVP
.

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