Solved

Error Event ID 9646 MSExchangeIS

Posted on 2007-11-15
16
5,995 Views
Last Modified: 2012-06-21
Hi,

I have a problem with Exchange 2003 which is:
Evenlog Application: event ID 9646
Mapi session "/o=mydomain/ou=sales/cn=home/cn=california/cn=username" exceeded the maximum of 32 objects of type "session"
I can see on Exchange manager a lot of connection hunging on the server for that user and user can't send emails just stuck on outbox.

Any help much appreciated.
Thanks,
Se
0
Comment
Question by:seruas
  • 5
  • 4
  • 3
  • +1
16 Comments
 
LVL 22

Expert Comment

by:ATIG
ID: 20288408
by default a client is limited to 32 mapi sessions..... what is the client doing that its generating so many sessions?

I know who to get around it but am more curious to whats is generating so many connections.
0
 
LVL 31

Expert Comment

by:LeeDerbyshire
ID: 20288898
Does this (Scalable Networking on SBS) apply to your server?
http://support.microsoft.com/default.aspx?scid=kb;en-us;936594
0
 

Author Comment

by:seruas
ID: 20289112
I don't know what causing this behave I guess is because some users connecting from VPN but I’m not sure but can tell me what is the workaround for this issue.

I’m not running SBS!
Thanks anyway
0
 
LVL 31

Expert Comment

by:LeeDerbyshire
ID: 20289197
If the connections are being kept open indefinitely, try getting hold of tcpview and kill them off.  If they keep coming back, then there is a connectivity problem between one of your clients and the server.
0
 
LVL 22

Accepted Solution

by:
ATIG earned 500 total points
ID: 20289297
There is a permission that  you can grant accounts to allow for more than 32 mapi connections but again that would be abnormal for a client to make so many connections.

by granting view information store permission allows a user to exceed the 32 mapi connections
0
 
LVL 31

Expert Comment

by:LeeDerbyshire
ID: 20289423
There is also a registry key:
http://support.microsoft.com/kb/830836
but it doesn't seem an ideal solution, since it will just consume more server resources.
0
 
LVL 22

Expert Comment

by:ATIG
ID: 20289432
I agree with Lee.....which is why it better to find out why the client is making so many connectinos because that is ab normal.....

typically accounts for BES etc.. that do a number of connections use that perm and I think should be last resort.

0
Do You Know the 4 Main Threat Actor Types?

Do you know the main threat actor types? Most attackers fall into one of four categories, each with their own favored tactics, techniques, and procedures.

 
LVL 13

Expert Comment

by:vishal_breed
ID: 20290380
Use Microsoft Exchange Best Practices Analyzer Tool to scan Exchange 2003 server.

It scans Exchange server & checks whether any changes are required.

http://www.microsoft.com/downloads/details.aspx?familyid=dbab201f-4bee-4943-ac22-e2ddbd258df3&displaylang=en
0
 

Author Comment

by:seruas
ID: 20292386
I have run Best Practices Analyzes already but everything looks good.

any other idea?

0
 
LVL 13

Expert Comment

by:vishal_breed
ID: 20296828
* It seems Exchange is configured properly & no there are no issues as such!!

* But since you see those event IDs due to Outlook Conenctions - here is the MS solution. http://support.microsoft.com/kb/842022/en-us

* Or as last resort you may try another MS Tool. ExTRA (Exchange Troubleshooting Assistant).

http://www.microsoft.com/downloads/details.aspx?familyid=4BDC1D6B-DE34-4F1C-AEBA-FED1256CAF9A&displaylang=en

* All the best !!

0
 

Author Comment

by:seruas
ID: 20297085
Thanks vishal I will try the second option.

;)
0
 
LVL 13

Expert Comment

by:vishal_breed
ID: 20297149
I would prefer MS Soultion http://support.microsoft.com/kb/842022/en-us as mentioned.
0
 
LVL 22

Expert Comment

by:ATIG
ID: 20297613
which is the solution to add the permssion that I mentioned above :P
0
 

Author Comment

by:seruas
ID: 20333896


After an exhaustive search a colleague of my have found this solution:
http://msexchangeteam.com/archive/2007/07/18/446400.aspx
This fix our problem for now.

Thanks everbody for the help!
0
 

Author Comment

by:seruas
ID: 20358537
please close this topic!
0

Featured Post

Don't lose your head updating email signatures!

Do your end users still have the wrong email signature? Do email signature updates bore you or fill you with a sense of dread? You can make this a whole lot easier on yourself by trusting an Exclaimer email signature management solution. Over 50 million users do...so should you!

Join & Write a Comment

Utilizing an array to gracefully append to a list of EmailAddresses
Not sure what the best email signature size is? Are you worried about email signature image size? Follow this best practice guide.
In this video we show how to create a User Mailbox 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 Recipients >> Mailb…
In this video we show how to create a Contact 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 Recipients >> Contact ta…

743 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

Need Help in Real-Time?

Connect with top rated Experts

9 Experts available now in Live!

Get 1:1 Help Now