Still celebrating National IT Professionals Day with 3 months of free Premium Membership. Use Code ITDAY17

x
?
Solved

Exchange 5.5 refusing external mail with 5.7.1

Posted on 2003-11-17
4
Medium Priority
?
312 Views
Last Modified: 2008-03-06
Recently our Exchange 5.5 residing on a Win2K server has started rejecting some email from outside with the error "5.7.1 Unable to relay for memyself@mycompany.com".  This is apparently only a problem with certain recipients and from a few specific companies, but I'm not sure where to look for the problem.  I've disabled relaying on my server to prevent spam.  Has anybody else had this problem and found a solution?
0
Comment
Question by:krcyberscotts
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 3
4 Comments
 
LVL 24

Expert Comment

by:David Wilhoit
ID: 9768379
post a copy of an NDR here.

D
0
 

Author Comment

by:krcyberscotts
ID: 9773128
From: Mail Administrator [mailto:Postmaster@apples.com]
 Sent: Monday, November 17, 2003 12:11 PM
 To: somebody@oranges.com
 Subject: Mail System Error - Returned Mail
 This Message was undeliverable due to the following reason:

 Each of the following recipients was rejected by a remote mail
 server. The reasons given by the server are included to help you
 determine why each recipient was rejected.

 Recipient: <memyself@mycompany.org>
 Reason:    5.7.1 Unable to relay for kscott@cola.org


 Please reply to Postmaster@apples.com
 if you feel this message to be in error.

----

Looking over the NDR I noticed that the server name is the company's old name -- different from the account that is handling the email.  Could the problem be on their end?
0
 
LVL 24

Accepted Solution

by:
David Wilhoit earned 1000 total points
ID: 9773974
If you have contact info on these few recipients, delete these contacts, and then rebuild them with new info from the latest emails you've received from them. i'd bet this resolves your problem....at least i'm hoping :)

D
0
 
LVL 24

Expert Comment

by:David Wilhoit
ID: 9775603
Did this work?? Just so everyone knows....

D
0

Featured Post

Independent Software Vendors: We Want Your Opinion

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

It’s a strangely common occurrence that when you send someone their login details for a system, they can’t get in. This article will help you understand why it happens, and what you can do about it.
Preparing an email is something we should all take special care with – especially when the email is for somebody you may not know very well. The pressures of everyday working life stacked with a hectic office environment can make this a real challen…
The purpose of this video is to demonstrate how to use PicMonkey software to customize images for a Mailchimp campaign. Picmonkey is free and simple online software which can be used by users who don’t have robust editing software such as Photoshop,…
Nobody understands Phishing better than an anti-spam company. That’s why we are providing Phishing Awareness Training to our customers. According to a report by Verizon, only 3% of targeted users report malicious emails to management. With compan…
Suggested Courses

705 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question