have asp.net form, when sending out receive the following....

[rrmcguire]

Diagnostic information for administrators:

Generating server: MS58

rrmcguire@hotmail.com
#< #4.7.1 smtp;450 4.7.1 <rrmcguire@hotmail.com>: Recipient address rejected: invalid sender domain for relay (0)> #SMTP#

Original message headers:

Received: from MS58 ([127.0.0.1]) by MS58 with Microsoft
SMTPSVC(6.0.3790.4675); Thu, 24 Feb 2011 09:35:18 -0500
thread-index: AcvUMA7nu6yJ77WjT6SOz/iVExp/Tg==
Thread-Topic: YSA Registration
From: <userA@domainA.com>
To: <userB@domainB.com>
Subject: YSA Registration
Date: Thu, 24 Feb 2011 09:35:18 -0500
Message-ID: <BE94339AEA7D4C07905F29A2F9A03377@MS58>
MIME-Version: 1.0
Content-Type: multipart/alternative;
boundary="----=_NextPart_000_0000_01CBD406.26136A50"
X-Mailer: Microsoft CDO for Windows 2000
Content-Class: urn:content-classes:message
Importance: normal
Priority: normal
X-MimeOLE: Produced By Microsoft MimeOLE V6.00.3790.4657
Return-Path: rmcguire@meadowlarkco.com
X-OriginalArrivalTime: 24 Feb 2011 14:35:18.0389 (UTC) FILETIME=[0EE97250:01CBD430]


any help would be appreciated as to why this is coming back to me like this...

thanks

 

[guitarzan]

Repost here: forum855

 

[ChrisHirst]

Not strictly a .net issue or solution, and as such forum605 would have been a more appropriate forum.

However:

A: does the sender domain match the ReturnPath header domain?

B:
Route the message via a mail server with reverse DNS lookup rather than directly from an invalid IP (MS58 ([127.0.0.1]) )

Chris.

Indifference will be the downfall of mankind, but who cares?
Time flies like an arrow, however, fruit flies like a banana.
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