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what is the difference MAPI and IMAP?

    Question

  • what is the main difference between MAPI and IMAP protocol,what are the benifit of IMAP protocol using in outlook
    Sunday, January 16, 2011 4:34 AM

Answers

  • MAPI allows client programs to become (e-mail) messaging-enabled, -aware, or -based by calling MAPI subsystem routines that interface with certain messaging servers. While MAPI is designed to be independent of the protocol, it is usually used with MAPI/RPC, the proprietary protocol that Microsoft Outlook uses to communicate with Microsoft Exchange

    IMAP supports both on-line and off-line modes of operation. E-mail clients using IMAP generally leave messages on the server until the user explicitly deletes them. This and other characteristics of IMAP operation allow multiple clients to manage the same mailbox. Most e-mail clients support IMAP in addition to POP to retrieve messages; however, fewer email services support IMAP. IMAP offers access to the mail store. Clients may store local copies of the messages, but these are considered to be a temporary cache. however IMAP use SMTP protocol to send messages.


    Best Rgds, Ashish | Unified Comunication | MCTS | MCITP | Please remember to select option "Propose As Answer" if solution work for you | My posts hold no assurances, no promises, and they measured no rights.
    Sunday, January 16, 2011 1:51 PM
  • Is there a specific reason you are asking?

    You'll want your internal, domain-joined Outlook clients to use mapi. It's what Outlook does best and allows you to take advantage of all the integration features with Exchange.

    External clients can use RPC over HTTPS ( Outlook Anywhere) and get those same advantages.

    MAC clients can leverage EWS.

    Generally, IMAP and POP are not good client choices.

     

     

     

     

     

     

     

     

    Sunday, January 16, 2011 2:44 PM
    Moderator

All replies

  • MAPI allows client programs to become (e-mail) messaging-enabled, -aware, or -based by calling MAPI subsystem routines that interface with certain messaging servers. While MAPI is designed to be independent of the protocol, it is usually used with MAPI/RPC, the proprietary protocol that Microsoft Outlook uses to communicate with Microsoft Exchange

    IMAP supports both on-line and off-line modes of operation. E-mail clients using IMAP generally leave messages on the server until the user explicitly deletes them. This and other characteristics of IMAP operation allow multiple clients to manage the same mailbox. Most e-mail clients support IMAP in addition to POP to retrieve messages; however, fewer email services support IMAP. IMAP offers access to the mail store. Clients may store local copies of the messages, but these are considered to be a temporary cache. however IMAP use SMTP protocol to send messages.


    Best Rgds, Ashish | Unified Comunication | MCTS | MCITP | Please remember to select option "Propose As Answer" if solution work for you | My posts hold no assurances, no promises, and they measured no rights.
    Sunday, January 16, 2011 1:51 PM
  • Is there a specific reason you are asking?

    You'll want your internal, domain-joined Outlook clients to use mapi. It's what Outlook does best and allows you to take advantage of all the integration features with Exchange.

    External clients can use RPC over HTTPS ( Outlook Anywhere) and get those same advantages.

    MAC clients can leverage EWS.

    Generally, IMAP and POP are not good client choices.

     

     

     

     

     

     

     

     

    Sunday, January 16, 2011 2:44 PM
    Moderator
  • Can you please explain the followings?<o:p></o:p>

    Why Exchange 2010 does not have MAPI as it has IMAP4.<o:p></o:p>

    What do mean by IMAP stores the sent emails on the Exchange Server unless client deletes?<o:p></o:p>

    What do you mean by online and offline modes of operation.<o:p></o:p>

    Thursday, February 20, 2014 12:29 AM