Badges [ 6 ] [-]
Memberships [ 2 ] [+]
Activity Stream [+]
Ideas Contributed [ 2 ] [+]
Pre-filled FROM: dropdown listbox in mail composition form (also OWA), using info from delegated / shared mailboxes a.o. (Send-As) to populate. More end-user friendly than typing in the 'from' address (once) or picking entry from GAL (when shown).
Adding Set-MailboxSentItemsConfiguration / Get-MailboxSentItemsConfiguration for Exchange 2013, which is more elegant and manageable than setting (version-dependent) Outlook registry keys.