Solved

Mail bounced back for Exchange 2003

Posted on 2008-10-29
1
221 Views
Last Modified: 2013-11-22
Some of the emails to recipents are classified as spam and couldn't be delivered. I'm using Exchange 2003. How can I vertify that my Exchange 2003 doesn't send out any spam emails.

Any suggestion to identify the problem as I find my IP drops in the blacklist again even though I have requested to take it up. Any suggestion on this ??

Thanks
0
Comment
Question by:AXISHK
1 Comment
 
LVL 14

Accepted Solution

by:
Hedley Phillips earned 500 total points
ID: 22830310
Is this emails sent from your Exchange server to external recipients are being bounced?

Sounds like it is a case of spoofing. You won't get blacklisted as the lists aren't fooled by a spoofed sender.

But just to make sure:

You could also set it to not accept messages for non existant users:

http://www.amset.info/exchange/filter-unknown.asp

and run through these:

a) Check the mail smtp queues in Exchange System Manager to see if there is unusual activity.

b) Do a DNS test at http://member.dnsstuff.com/pages/dnsreport.php

c) See if you are blacklisted at http://www.robtex.com/

d)  In case you need to secure your server:
http://technet.microsoft.com/en-us/library/bb123843.aspx
http://www.microsoft.com/technet/security/prodtech/exchangeserver/excrelay.mspx
0

Featured Post

Industry Leaders: 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

Learn to move / copy / export exchange contacts to iPhone without using any software. Also see the issues in configuration of exchange with iPhone to migrate contacts.
How to resolve IMCEAEX NDRs in Exchange or Exchange Online related to invalid X500 addresses.
Established in 1997, Technology Architects has become one of the most reputable technology solutions companies in the country. TA have been providing businesses with cost effective state-of-the-art solutions and unparalleled service that is designed…
Exchange organizations may use the Journaling Agent of the Transport Service to archive messages going through Exchange. However, if the Transport Service is integrated with some email content management application (such as an antispam), the admini…

696 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