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How can I limit the number of recipients for a message?
John Savill
December 21, 1999
1 Min Read
A. Using a new registry entry that was added as of 4.0 Service Pack 1you can set the number of recipients for a message which is the sum of To:, cc:and bcc: (this includes personal distribution lists).
To implement perform the following:
Logon to the Exchange Server
Start the registry editor (regedit.exe)
Move to HKEY_LOCAL_MACHINESystemCurrentControlSetServicesMSExchangeISParametersSystem
From the Edit menu select New - DWORD value
Enter a name of 'Max Recipients on Submit' (don't type the quotes) and press Enter
Double click the new value and set to the max number. Click OK
Close the registry editor
If a user attempts to send a message to more recipients than is designated bythe Max Recipients on Submit parameter and the user has the new Emsmdb(32).dll,the following error message may be displayed when the user attempts to send themessage:
The item could not be sent. The number of recipientson this message exceeds the upper limit configured by the administrator.
If a user attempts to send a message to more recipients than is designated bythe Max Recipients on Submit parameter and the user DOES NOT have the newEmsmdb(32).dll, the following error message may be displayed when the userattempts to send the message:
The item could not be sent. The client operationfailed.
More information can be found in Knowledge Base article Q126497 at http://support.microsoft.com/support/kb/articles/q126/4/97.asp.
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