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VM Users disappearing

I have an environment where users are disappearing randomly. The environment is an Exch 5.5/Windows 2000 Network. Active Directory is replicating one-way to the exchange site. When a user disappears, the fix is to check the "allow rich text" on the exchange mailbox attributes. Is there anyway to stop active directory from replicating these changes to the exchange mailbox. <br><br>


Re: VM Users disappearing

OK… couple of things here.

First, Active Voice does not support the configuration you’re trying to use. We do not support the Active Directory Connector coming inbound our in a bi-directional setup and the problem you’re having is one of the reasons why. I just want to be real clear about that before moving on.

Now… as to the reason why it’s doing this. Active Directory has a whole log more properties per user than the old Exchange Directory in 5.5 does (roughly 3 times as many) and not everything matches up one for one or is named the same thing it was. A number of old properties are no longer used in AD and, as such, there’s no mechanism to save or respect the existing values for those properties in 5.5. One of the many issues in trying to get information FROM active directory TO Exchange 5.5 is how it maps these items and what it does with the “extra” or “missing” data items. Active Directory no longer has the concept of a “MAPI_RECIPIENTS” flag (which is what the “allow rich text” flag sets behind the scenes in Exchange 5.5). Since in Exchange 5.5 this is necessary for us to filter on, there is a definitely problem here.

If you are creating users in Win2K and then having it create a mailbox for you in Exchange 5.5, you are always going to have this (and other) problems. Given the direction of your connector I’m assuming this is what you’re doing. Every time a change is made somewhere and replication is forced, it will wipe out the MAPI_RECIPIENTS property in the Exchange 5.5 directory. There’s no way to make it not do this with the setup you have.

The only way to get even close here is to have replication going FROM Exchange 5.5 TO active directory one way. Create your users on Exchange 5.5 and have their information then replicate out to the AD. Any situation where AD information is inbound to Exchange 5.5 (one way or two way connectors) spells trouble.

Jeff Lindborg
Unity Product Architect
Active Voice

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