Exchange 2007 Send-as permission takes long time to accept

[Miha]

Hi

When I add Send-as permission to a distribution group (or even on a Mailbox)
on Exchange 2007 it takes a long time (over a day) so that permission are
active. I tried via AD-Security settings or with a powershell
"Add-AdPermission "Group Name" -user "User Name" -AccessRights
extendedright -ExtendedRights "send as" it's all the same.
When a user tries to send throught Outlook e-mail and adds in TO field
e-mail address of a distribution group that have send-as permissions for his
account he gets back error that he doesn't have permissions to do that. But
over a day it magically starts working? Any ideas how can this be done so
that permissions take action quicker?
Regards,Miha

[Massimo]

"Miha" <miha....@email.si> ha scritto nel messaggio
news:OuDTAEMD...@TK2MSFTNGP05.phx.gbl...

> When I add Send-as permission to a distribution group (or even on
> a Mailbox) on Exchange 2007 it takes a long time (over a day) so
> that permission are active.

That's most likely a caching problem; have a look there:

http://support.microsoft.com/kb/327378
http://theessentialexchange.com/blogs/michael/archive/2008/01/18/Exchange-Server-Caches.aspx

Massimo

[Miha]

Thank's Massimo. This registry settings really do the trick.
Regards,Miha
"Massimo" <bar...@mclink.it> wrote in message
news:eMx5aXMD...@TK2MSFTNGP03.phx.gbl...