Outlook mailbox name not updating
You can change the part of the address that appears before the @ sign.
And if you have more than one domain in your account, you can change the part after the @ sign (to one of your other domains).
And it can take up to 3 days before the user can use Google Talk.
A shared mailbox is accessible by multiple users, all of whom are granted specific access permissions.
It can take 24 hours if you change the user’s domain name.
I'm assuming there's something I'm supposed to do with retention tags/policies (currently all users are on the default MRM policy).
I thought the default was to move everything older than 2 years to the archive mailbox.
Users can’t change their own primary email address.
A user’s display name is the first and last name that appears in mail messages they send, calendar guest lists, and other Google services.