In Exchange 2010, the process for AD caching has been rewritten. However, in Exchange 2007 and before, all the way back to Exchange 2000; AD caching could bite you in the rear for up to two hours (worst case). One hour is a very typical case.
Exchange caches user information and group information from AD in order to minimize the load it puts on AD servers. ________________________________ From: Sobey, Richard A [r.so...@imperial.ac.uk] Sent: Tuesday, October 20, 2009 12:18 PM To: MS-Exchange Admin Issues Subject: RE: Send As... Send As in my experience takes effect within a few minutes, however I have known it to take a long time. Plus, it’s an Active Directory permission, not a Store permission, as far as I know. Your quote is valid for upping user quotas, however. From: bounce-8699560-8066...@lyris.sunbelt-software.com [mailto:bounce-8699560-8066...@lyris.sunbelt-software.com] On Behalf Of Sam Cayze Sent: 20 October 2009 17:11 To: MS-Exchange Admin Issues Subject: Send As... Added send as rights for a user. Rebuilt Address Book, etc... still NDRs trying to send as that user. Read this online "The Exchange Information store service caches this information for 120 minutes (the standard value). If you cannot wait that long, then you can restart the Information store service." Is this true? Sam
