?
Solved

Reduce Mapi Timeout Settings Exchange 2003 - Event ID 9646

Posted on 2009-05-15
2
Medium Priority
?
2,806 Views
Last Modified: 2012-06-27
Hi

We are runnging Exchange 2003 (SP2) on Windows 2003 (SP2). Recentley we have been seeing Event ID 9646 "Mapi session "/o=COMPANY/ou=First Administrative Group/cn=Recipients/cn=USER" exceeded the maximum of 32 objects of type "session".

I have read articles (see below) about decreasing the Mapi Timeout Session..  

Value name: KeepAliveTime
Key: Tcpip\Parameters
Value Type: REG_DWORD-Time in milliseconds
Valid Range: 1-0xFFFFFFFF
Default: 7,200,000 (two hours)

By the looks of the articles this Registry Entry should be there by default but we don't seem to have it. Should we manually add this in?

I don't want to increase the amount of mapi sessions allowed as i want to eventually find the cause of the users that this is happening too.

Any suggestions

http://support.microsoft.com/default.aspx?scid=kb;EN-US;324270
http://support.microsoft.com/kb/315669
http://support.microsoft.com/kb/842022
0
Comment
Question by:James Hurley
[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
2 Comments
 
LVL 24

Accepted Solution

by:
Rajith Enchiparambil earned 1500 total points
ID: 24394773
If you don't have it, just add the registry entries, no harm there.

Take a backup of the registry if you are not confident.
0
 

Author Closing Comment

by:James Hurley
ID: 31581864
Thanks, added to the registry and it didn't fall over. All seems to be working well. Thanks
0

Featured Post

NFR key for Veeam Backup for Microsoft Office 365

Veeam is happy to provide a free NFR license (for 1 year, up to 10 users). This license allows for the non‑production use of Veeam Backup for Microsoft Office 365 in your home lab without any feature limitations.

Question has a verified solution.

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

This article aims to explain the working of CircularLogArchiver. This tool was designed to solve the buildup of log file in cases where systems do not support circular logging or where circular logging is not enabled
Check out this step-by-step guide for using the newly updated Experts Exchange mobile app—released on May 30.
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 …
This video demonstrates how to sync Microsoft Exchange Public Folders with smartphones using CodeTwo Exchange Sync and Exchange ActiveSync. To learn more about CodeTwo Exchange Sync and download the free trial, go to: http://www.codetwo.com/excha…
Suggested Courses

762 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