No habla MAPI

It has been brought to my attention that Outlook 2011 for Mac doesn't speak MAPI. I noticed an extreme growth of IIS logs on a Client Access Server and further inspection pointed towards a single Outlook 2011 for Mac user. What appeared to be a DDOS attack was in fact normal Outlook 2011 EWS usage. If this is the result of a single user, one can only imagine the size of the IIS logs when thousands of Outlook 2011 clients are connecting. The horror...

Delegated mail stuck in outbox

There seem to be a problem with Outlook 2010 regarding the option to send as a delegated mailbox when running in online mode. Apparently, the mail is sent but it seem to be stuck in the outbox folder of the main mailbox. This only happens in the following scenario.

• Outlook is running in online mode
• A mail is sent from a delegated mailbox
• The registry tweak to move sent mail to the appropriate sent items folder is activated

According to a certain Fiona Liao, this is a known issue within Microsoft and will not be fixed until Outlook 2012. Also, the same problem seem to be present in Outlook 2011 for Mac OS X.