Solved

URGENT Exchange 2003 intermitently resends old emails

Posted on 2010-11-29
3
370 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

Enterprise Mobility and BYOD For Dummies

Like “For Dummies” books, you can read this in whatever order you choose and learn about mobility and BYOD; and how to put a competitive mobile infrastructure in place. Developed for SMBs and large enterprises alike, you will find helpful use cases, planning, and implementation.

Question has a verified solution.

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

Restoring deleted objects in Active Directory has been a standard feature in Active Directory for many years, yet some admins may not know what is available.
MS Outlook is a world-class email client application that is mainly used for e-communication globally.  In this article, we will discuss the basic idea about MS Outlook, its advanced features, and types of MS Outlook File formats.
In this video we show how to create a Resource Mailbox in Exchange 2013. We show this process by using the Exchange Admin Center. Log into Exchange Admin Center.: Navigate to the Recipients >> Resources tab.: "Recipients" is our default selection …
In this video we show how to create a mailbox database in Exchange 2013. We show this process by using the Exchange Admin Center. Log into Exchange Admin Center.: First we need to log into the Exchange Admin Center. Navigate to the Servers >> Data…

803 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