What protocol does Outlook2K use with Exchange5.5? IMAP4 or MAPI?

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Guest

I'm the NetAdmin, and I have a programmer who asked me the following question:

"Okay, so if I'm inside the trusted Network and I connect to Exchange with Outlook am I using IMAP4? Or is it MAPI?"

...... and i have NO idea ... any help would be greaty appreciated... thanks in advance!!
 
Extended MAPI Exchange provider which in turn uses RPC, unless you
explicitly connect to Exchange using IMAP4 protocol.

Dmitry Streblechenko (MVP)
http://www.dimastr.com/
OutlookSpy - Outlook, CDO
and MAPI Developer Tool


Marty said:
I'm the NetAdmin, and I have a programmer who asked me the following question:

"Okay, so if I'm inside the trusted Network and I connect to Exchange with
Click to expand...
Outlook am I using IMAP4? Or is it MAPI?"
.... and i have NO idea ... any help would be greaty appreciated... thanks
Click to expand...
in advance!!
 
so, just to make sure i'm understanding you, Outlook as an exchange client is using MAPI - which, as you said, in turn uses RPC to connect to exchange 5.5 --- if i want to use IMAP4 from the exchange client, i have to specifically change that on the client end... right?
 
Yes, if you want to use Outlook as an IMAP4 client, you need to explicitly
add an IMAP4 server, not Exchange to the profile.

Dmitry Streblechenko (MVP)
http://www.dimastr.com/
OutlookSpy - Outlook, CDO
and MAPI Developer Tool


Marty said:
so, just to make sure i'm understanding you, Outlook as an exchange client
Click to expand...
is using MAPI - which, as you said, in turn uses RPC to connect to exchange
5.5 --- if i want to use IMAP4 from the exchange client, i have to
specifically change that on the client end... right?
 
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