"Send As" permissions on a group - Exchange 2010

stoofa · 21 Apr 2010 at 13:03

OK - this one is now doing my head in!

I have created a "Mail Enabled Security Group" called IT Department.
Under a user called "Terry Test" I have given him the "Send As" permission on this newly created group.
I've waited over the 2hrs (cache) time.
Have attempted to set the "From" address to the group in question and send a test message.
Message fails with:

You can't send a message on behalf of this user unless you have permission to do so........

This user has got the "Send As" permissions for this group.
So what am I doing wrong?
I'm missing something obvious but I can't find it......

iaind · 21 Apr 2010 at 13:09

You probably want the send on behalf permission, not send as

stoofa · 21 Apr 2010 at 13:30

I was under the impression that if you use:

"Send on behalf" the "From" address would read:
John Smith sent on behalf of IT Department

Whereas using the "Send As" permission the "From" address would simply read:
IT Department

As a Domain Administrator I can send as anyone - so I can happily put "From" IT Department and it just works.

However regular users cannot, even though I make them a member of the IT Department group and give them the "Send As"

Richard_16v · 21 Apr 2010 at 14:35

Your right about the send as/send from

Was the Group created in 2010 tools or 2003 ADUC? I have had strange issues with 2007 mail items created in 2003 ADUC - there is a command you have to run Set-Mailbox User_Name -ApplyMandatoryProperties not sure if it's the same in 2010 but this may be worth trying.

Other than that I would just run a replmon to make sure that everything is replicated.

ruffneck · 21 Apr 2010 at 15:24

what happens if you temporally take the users outlook out of cached mode and try again? Just to eliminate a cache issue.