I saw today's post about quarantine support in admin portal. I'd say finally, but there is some huge issue...
There is no "show all recipients I have access to".
A user who maintains multiple shared mailbox with many different aliases has to check every single alias one by one. That's pretty useless for us 😞
Regarding the quarantine-notification:
We cannot configure the message (sender display name or logo). Also the mail is not sent reliably. I already did open a ticket about a user not getting his, while hundreds of colleagues with the very same configuration receive theirs.
Ticket was closed with the answer: it was HCP which does not trigger quarantine notification by default and you cannot change default behavior for HCP.
I think, the product team needs to fix some things and train supporters.