Re: MAPI vs IMAP4
- From: "Rich Matheisen [MVP]" <richnews@xxxxxxxxxxxxxxxxxxxxx>
- Date: Sat, 28 Apr 2007 16:12:15 -0400
Dennis <dennispublic@xxxxxxxxxxx> wrote:
....nevermind!! I just stumbled accross a link that mentions MAPI
uses RPC over HTTP.... everything makes sense now....
Then you're in big trouble!
MAPI isn't a "wire" protocol. It's software that the application uses
to insulate itself from having to deal with multiple protocols.
RPC, HTTP, POP3, IMAP4, SMTP, ESMTP, X.400, etc. are all different
protocols that define how data are sent and received.
Client
^
|
v
Client Interface -+
MAPI | <= MAPI Subsystem
Service Provider Interface -+
^ ^ ^
| | |
v v v
MSMail Exchange FAX . . . POP3 IMAP4 <= Service Providers
^ ^ ^ ^ ^
| | | | |
v v v v v
MSMail Exchange FAX POP3 IMAP4
Server Server Modem Server Server
If, for example, the "Exchange" Service Provider is using RPC, or
RPC-Over-HTTP, and uses VPN, Dial-Up, or whatever, the "Client" doen't
have to know (or care).
Except for one thing... how do you secure a MAPI client? Can they use
RPC over HTTPS or do you need a VPN connection?
That's a protocol question, not a client question.
You can tell the service provider (the bit that knows how to talk to
that particular server) to encrypt the RPC connection. You can tell
the service provider to use HTTPS (continue that with POP/POPS,
IMAP/IMAPS, etc.)
--
Rich Matheisen
MCSE+I, Exchange MVP
MS Exchange FAQ at http://www.swinc.com/resource/exch_faq.htm
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