RE: Maximum number of simultaneous registrations for MAPI notifications
- From: "Mark Fugatt" <markfu@xxxxxxxxxxxxx>
- To: "[ExchangeList]" <exchangelist@xxxxxxxxxxxxx>
- Date: Fri, 3 Mar 2006 11:31:40 -0000
It can also be an indication that you have some malware or rootkits on
the Exchange server, you might want to try running Rootkitrevealer on
the server http://www.sysinternals.com/Utilities/RootkitRevealer.html
and see what that comes up with.
Mark Fugatt
Dedicated Supportability Engineer (Exchange)
Microsoft Limited
Desk: +44 (0)118 909 5630
Mobile: +44 (0)7966 858108
MSN IM: markfu@xxxxxxxxxxxxxxxxx
Blog: http://blogs.technet.com/mfugatt
Dedicated to proactively supporting Microsoft's enterprise Customers
If you have any feedback about my work, please let either myself or my
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change%20DSE)> or telephone +44 118 909 3233
________________________________
From: Tony Afriyie [mailto:Tony.Afriyie@xxxxxxxxxxxx]
Sent: 03 March 2006 11:03
To: [ExchangeList]
Subject: [exchangelist] RE: Maximum number of simultaneous registrations
for MAPI notifications
http://www.MSExchange.org/
Here is the info I came accros from www.eventid.net
<http://www.eventid.net/> :
"As per Microsoft: "When a MAPI client (such as Outlook) starts and
connects to an Exchange server, the client registers itself with the
Information Store. The client registers its User Datagram Protocol (UDP)
post and an IP address so that the server can use this information to
communicate to the client when a new message is received by the store
for the client. This is called a PUSH NOTIFICATION because the Server
PUSHes this information to the client. The server saves the client's
Push Notification Registrations in its memory. When a new message is
received for a particular client, the server looks up that client's
registration information (UDP port and IP address) and informs the
client that a new message is waiting in the store. It is then the
client's responsibility to download the information so that the user
sees the new mail.
Exchange Server now has a limit on the default number of registrations
(and context size settings) that can be set up by a particular client.
This is set on the server by adding a registry entry and prevents
clients from registering more push notifications than set. In such a
situation, if the client attempts to set more than the expected number
of Push notification registrations an MSExchangeIS event 9671 is logged
in the server's application log". "
________________________________
From: Mark Meelhuysen [mailto:Mark@xxxxxxxxxxxx]
Sent: Friday, March 03, 2006 3:51 AM
To: [ExchangeList]
Subject: [exchangelist] Maximum number of simultaneous registrations for
MAPI notifications
http://www.MSExchange.org/
Hello all,
On an Server 2003 (SP1) machine with Exchange 2003 (SP2) i get the
following error:
Event Type: Error
Event Source: MSExchangeIS
Event Category: General
Event ID: 9671
Date: 2-3-2006
Time: 5:01:57
User: N/A
Computer: DC-VERTON
Description:
User SYSTEM has exceeded the allowed maximum number of simultaneous
registrations for MAPI notifications.
The configured maximum number of event notification registrations is 8.
For more information, click
http://www.microsoft.com/contentredirect.asp.
Data:
0000: 31 00 30 00 2e 00 32 00 1.0...2.
0008: 30 00 30 00 2e 00 31 00 0.0...1.
0010: 34 00 2e 00 31 00 00 00 4...1...
Can anyone tell me what I should do? I followed the link and it says:
The administrator can set the maximum number of registrations and the
context size setting by adding the following REG_DWORD values to
HKLM\System\CurrentControlSet\Services\MSExchangeIS\ParametersSystem:
* Maximum Allowed Client Context Size (default is 16 bytes).
* Maximum Allowed Notification Registrations Per Client (default
is 8).
But these values are not present.
Thanks in Advance.
Mark
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