First impressions (just signed up, don't have the TA yet):
1) Navigation is inefficient & confusing.
Way too little on the first page. Can you expand all the sub-tabs and let you click directly to a sub-menu selection?
2) too many cryptic buttons. Voicemail's "Update MWI"?
(took me a while to figure out "message waiting indicator"), plus "Remove" and "Move" buttons hanging out in the right margin. move/remove what? messages? mailboxes?
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