Exchange shared mailbox

[Vertigo]

Have set up a shared mailbox on Exchange 2010 but am having problems with the infernal from address.

I've configured the mailbox as an additional account within Outlook so it appears as a totally separate mailbox. Now it all works fine for me - if I have the inbox of the shared mailbox selected when I create a new email, then the from address is preset to the address of the shared mailbox which is what I want. However if other users do the same, they get their primary mailbox address instead.

Now I'm the domain admin so I'm suspecting there's something different in my case but I can't figure out what. All users have full access and send as permissions on the mailbox.

What am I missing? Why does it work for me but not others? Trying to Google this is hopeless as every site you find is simply telling you how to configure the shared mailbox so the from address works correctly, not telling me what to do once I've done this but it's not working for some users.

 

[Vertigo]

Apologies for not getting back here sooner. To respond to some of the questions...

Are you sure the permissions are right? If you have granted send on behalf by mistake then your users will only have that right, if you're a domain admin (please say you aren't using that as your daily account) then you have SendAs without anything else needing to be granted.

I've granted both Send As and Full Access permissions on the shared mailbox to all the relevant users. I know my own account shouldn't be a Domain Admin but yes, I'm afraid it is right now. I'll sort that at some point.

If you issue is about not being able to pick the account in Outlook, get your users to compose a new message, go to the options tab and click 'From' in the show fields section. Use the dropdown to pick the from address out of the GAL. This only needs to be done once.

To clarify, I have the From field enabled in Outlook. If I have my own mailbox selected when I create a new email, the From address defaults to my mailbox address. If I have the shared mailbox selected, it defaults to the shared mailbox address. In each case I can change it if I need to but I don't as it's defaulting just as I want it. With other users, the From address defaults to their mailbox address even if the shared mailbox is selected. They can use the drop-down to change it but they'll never remember to do that every time so I want it to default as it does for me.

I suspect you will need to do this https://support.microsoft.com/en-nz...items-folder-of-the-shared-mailbox-in-outlook

EDIT: Apologies, I didn't read the OP correctly this is not what you want. Use the from field as per caged above.

I think you also have the issue where replies go into the default mailbox sent items instead of the shared mailbox (although there is a reg hack for it).

I'm aware I'll need to do that via the registry tweak but I need to sort my main issue first.

To the OP question, Are there any differences between your clients that are being used. You say that Exchange 2010 is being used but this sounds more like a Client configuration that would be causing which default address should be used by default.

As above, that's exactly the problem, mine defaults correctly but other users don't.

 

[Vertigo]

Yeah the Automapping is driving me nuts.

I've now got one user who could access the mailbox fine the other day but is now getting access errors.

I despair of Microsoft I really do - why does everything have to be so damned hard?