Just checked T-Mobile's site after logging in and one thing I notice is that there is a
"Your name" field so that your e-mails appear from Joe Bloggs instead of
. Not sure if this is new or it was always there and I just missed it.
Tested from my OWA accounts and it seems to work, although I couldn't get it to confirm in my GMail account, although that may be a temporary hiccup...
There is also an option for
"Synchronize deleted items between this mailbox and my device." that I'm not sure was there before.