"invalid sender domain" Error Any ideas

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Imran Aziz - 19 Jun 2006 11:17 GMT

Hello All,
I am using Exchange Server 2003 and sending out emails using SMTP, I
receive the following error from some of the recipient email addresses, any
idea why this happens and how to sort this issue out.

SMTP status code is

smtp;554

Googling around did not help much!

Imran.

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Peter Demeyer - 21 Jun 2006 13:20 GMT

This probably means that your mail server's public IP address (or
router/firewall) does not have a PTR record that matches your mail server's
hostname.
Or your mail server's hostname cannot be resolved by DNS.

> Hello All,
> I am using Exchange Server 2003 and sending out emails using SMTP, I
[quoted text clipped - 9 lines]
>
> Imran.

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hagman - 03 Jul 2006 15:47 GMT

Imran Aziz schrieb:

> Hello All,
> I am using Exchange Server 2003 and sending out emails using SMTP, I
[quoted text clipped - 8 lines]
>
> Imran.

There is a problem with the "from" address of the outbound mail.
If it is "some.name@somedomain.com", You must make sure that
- somedomain.com is registered as a domain name
- there is an MX entry in the official(!) DNS for somedomain.com (or,
alternatively, an A record for somedomain.com itself)
If the domain is new/has recently been changed/transferred to another
registrar etc., it may take some time for the info to propagate.
Or maybe You are just sending with an invalid domain like
somedomain.local ?

Hagen

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