[ExchangeList] Re: Does 2003 require X400 addresses?

Here’s a question related to this:

 

Do contact objects or user objects with external email addresses really need an X400 address?   It sounds (by your explanation of how X400 addresses are used) that objects that don’t have mailboxes don’t really need the x400 address.

 

Thanks

 

Bill

 

 

If you delete them, you’ll regret it.

 

Exchange uses them for several things, perhaps most importantly to map a user account to the mailbox object in the mailstore.

 

I think it would be true to say that Exchange no longer uses those addresses for message routing.

 

 

I can’t find anything that says this definitively, but it was my understanding that Exchange 2003 and higher no longer uses X400 addressing within the org and that SMTP addresses are all it requires to function.  True?

Thanks