How to determine the UID of a message in IMAP

Posted by Emanuel on Stack Overflow See other posts from Stack Overflow or by Emanuel
Published on 2010-03-30T07:41:44Z Indexed on 2010/03/30 19:33 UTC
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Filed under:

c#

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pop3

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imap

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uid

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client-server

I'm working in a mail client project using C#. I'm using both the POP and IMAP protocol to communicate with the server. The problem is than I can not figure out why when I want to get the UID for a message the result from the POP server and the IMAP server are different.

POP
C: UIDL 1
S: +OK 1 UID2-1269789826

and

IMAP
C: $ FETCH 1 (UID)
S: * 1 FETCH (UID 2)
S: $ OK Fetch completed.

Why the result for obtaining the UID is so different? In IMAP is another function for this? Any help is welcome. Thanks.

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