Solved

URGENT Exchange 2003 intermitently resends old emails

Posted on 2010-11-29
3
378 Views
Last Modified: 2012-05-10
We have Exchange 2003 with all latest updates in Server 2003 domain. About a week ago our Exchange server started randomly sending out some old emails. Maybe 3-4 times a week. Very random and no pattern. We had also a situation when some email didn't reach the recipient causing some communication confusion in the company. The Exchange has been running OK for the past 3-4 years. Does this ever happen to anyone else and what could be reason and solution ?
0
Comment
Question by:piotrmikula108
  • 2
3 Comments
 
LVL 76

Accepted Solution

by:
Alan Hardisty earned 500 total points
ID: 34231441
Please download and install the following hotfix which will resolve your problem.

http://support.microsoft.com/kb/950757/

This is often referred to as the Greylisting bug and will be resolved by the patch.

Alan
0
 
LVL 1

Author Comment

by:piotrmikula108
ID: 34236456
I applied the patch and will need to monitor the server and wait for some feedback from users

thank you
0
 
LVL 76

Expert Comment

by:Alan Hardisty
ID: 34236830
You are welcome.  The problem usually appears after restarting the store or the server (which of course restarts the store).

It is because of mail servers greylisting mail from your server and due to the bug, the emails do not get delivered and do not appear on your server to send.  Once the patch is installed, the messages will reappear in your queue and can be re-sent, which is the aim of greylisting, forcing the sender to re-send as spammers only usually try to send the once.

All should be well - leave it a couple of days and restart the store or the server to hopefully show that all is well.  Ideally if you can remember some email domains that suddenly re-appeared in the queue - try to send some messages to those domains.

You can also send me a test message to alan @ it-eye.co.uk as we also use greylisting.

Alan
0

Featured Post

Free Tool: Site Down Detector

Helpful to verify reports of your own downtime, or to double check a downed website you are trying to access.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

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

Suggested Solutions

Title # Comments Views Activity
Exchange 2010 EMC access 6 37
Active Directory UPN Suffix Question 5 45
Custom Address book 9 15
not able to export result in csv - powershell 18 30
Marketers need statistics and metrics like everybody else needs oxygen. In this article we explain how to enable marketing campaign statistics for Microsoft Exchange mail.
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.
In this Micro Video tutorial you will learn the basics about Database Availability Groups and How to configure one using a live Exchange Server Environment. The video tutorial explains the basics of the Exchange server Database Availability grou…
This video shows how to quickly and easily add an email signature for all users on Exchange 2016. The resulting signature is applied on a server level by Exchange Online. The email signature template has been downloaded from: www.mail-signatures…

821 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