exchange protocols - MAPI, MAPI over HTTP, outlook anywhere. what are the differences? RRS feed

  • Question

  • Hi.

    I am completely confused- I am trying to understand the differences between MAPI, MAPI over HTTP, and outlook anywhere. From this article: it seems that exchange uses RPC directly with outlook clients.

    they all seem to involve RPC (my understanding is that MAPI is even running on the same ports as RPC), but I can't understand the differences between them, why the need to switch protocols, and what is was used when (in what version of exchange)

    A short 'for dummies' explanation will be greatly appreciated  

    Thursday, October 13, 2016 1:37 PM


  • Hi

    Good read:

    Outlook Anywhere is a service provided by the Client Access server role that allows Outlook clients to make a secure connection over SSL/HTTPS to the mailbox from remote locations. Previously this was known as RPC-over-HTTPS but was renamed to Outlook Anywhere in Exchange 2007 and 2010.

    Thursday, October 13, 2016 5:33 PM