Outlook 365 shared mailbox without automapping

[zenith lance]

In my organization, when we add shared mailboxes permissions to users with automapping enabled, these shared mailboxes are missing from the "From" dropdown unless you manually add them.
However if you add these shared mailbox permissions WITHOUT automapping, users will need to manually add these shared mailboxes through Account Settings. After that is done, these non-automapped shared mailboxes will be automatically showing in the "From" dropdown.

My Question:

• Is there a registry key/script/AppData configuration item that can be modified for Automapped shared mailboxes to automatically be added to "From" dropdown when a user is first added to these shared mailboxes' permissions?

[leaden comet]

it's a second command to add the sendas permissions

Add-RecipientPermission <identity> -AccessRights SendAs -Trustee <user>

but none of them should actually populate the dropdown list tbh

I think you still need to write it manually the first time

probably

[zenith lance]

Why is the dropdown list populated automatically when you add account using Account Settings?

[leaden comet]

¯_(ツ)_/¯

[zenith lance]

weird stuff

[leaden comet]

outlook is a horrible piece of software

[brisk warren]

there is a registry change you can set to make "from" show on the form, but in my company we just trained our users to click the "show the from" button on their own outlooks

[zenith lance]

is there a better email manager than Outlook 365?

[leaden comet]

nope :d

well there is outlook NEW

buy it's honestly just worse

[zenith lance]

yeah that was my previous questions which was resolved

[leaden comet]

:D

altho outlook new may actually have solved this specific issue

but be prepared to trade that for a bunch of different ones

:D

[zenith lance]

does Outlook New have better conditionals in rules?

[leaden comet]

hmm not sure

I haven't tested it much yet

[zenith lance]

I remember you couldn't do "OR" rules in Outlook

[brisk warren]

All of the rules are processed on the server so you're limited to what it has available there, there's no more local rules