Forum Discussion
shared mailbox default "send-as" ID in outlook
The shared mailbox wasn't available in the "from" drop-down field, so I had to select "other", then select it from a list of O365 mailboxes. I had to do this multiple times, so I don't think the O365 shared mailbox name was moved across to the "from" list at all. Obviously, I don't want my users to have to do this every time they want to send a mail, as they are not all that "computer friendly".
Similarly, I want the setup for them to be as painless as possible, and I had hoped that automapping would make that so, but it seems they will have to set up their email accounts the long way around, by themselves. I don't want them to make the mistake of sending from their personal accounts when they should be sending from the shared mailbox.
I'll give powershell a go just now - assuming I can do that on this machine, which I don't have windows admin rights on.
Yes, I seem to recall having to select 'Other' and then locating it in the list but once you've done that, it should be available in the From drop-down list.
Automapping works fine, I'm not sure what your problem is exactly. Might be worth bearing in mind the other issue/limitation that I have discovered, although I'm waiting on some confirmation that this is a Office 365 issue and not just for my tenants. See https://techcommunity.microsoft.com/t5/Office-365/Shared-folder-sync-issue/m-p/132212#M6850 and https://techcommunity.microsoft.com/t5/Office-365/Shared-mailbox-does-not-update-itself/m-p/132639#M6888
I don't think you need to be a Local Admin to connect to your tenant, you'll want to use the following to establish a connection:
$UserCredential = Get-Credential $Session = New-PSSession -ConfigurationName Microsoft.Exchange -ConnectionUri https://outlook.office365.com/powershell-liveid/ -Credential $UserCredential -Authentication Basic -AllowRedirection Import-PSSession $Session