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- On Thu, 1 Jul 1993 11:41:12 +0100 (WET DST), Antonio Franco wrote:
- > I have recently read RFC 1203 (2/91). A question occurred
- > me when I saw the following sentence (page 3): "This should allow
- > the IMAP protocol to evolve away from its current reliance on RFC822".
-
- Please do not believe anything you may read in RFC-1203. RFC-1203 is NOT part
- of any current IMAP development efforts.
-
- The base for current IMAP development is RFC-1176. In spite of it having a
- lower number, it is the authoritative document for IMAP. Extending RFC-1176
- is an unpublished document which describes ``IMAP2bis extensions''. This
- document is available from the ftp.cac.washington.edu anonymous FTP server on
- the mail/ directory.
-
- > Is there any work being done in order to support other
- > message types (for example, X.400 P2(84) or P2(88)) ?
-
- There is presently no such work.
-
- As Ned Freed suggests, the current thinking is that the way to address this
- problem is through X.400 to MIME conversion. IMAP clients should not have to
- deal with multiple message formats and structures.
-
- > 1) Fetch
- > 1.1) Using the Generic, Canonical and Concrete keys concept.
- > 1.2) Using the ENCODING recommended feature.
- > 2) Submission
- > 2.1) With some extensions to the SEND recommended feature (?).
-
- These are RFC-1203 concepts and are not part of IMAP. Nor will they be:
-
- - The keys concept, although possibly interesting, was not specified to the
- point that it could be implemented or even reasonably evaluated.
-
- - The encoding concept is an incorrect understanding of how to do multi-media
- and multinational character sets. It is completely worthless. The IMAP2bis
- extensions solved this problem correctly.
-
- - Sending through IMAP would have a (marginal) benefit only if the IMAP
- server is co-located with the client on a local area network. If the IMAP
- server is remote (or in a foreign country), sending through IMAP is
- potentially a horribly slow (and expensive!) operation. It is best not to go
- down that slippery slope...
-
-
-
-