RFC 2061 (rfc2061) - Page 3 of 3
IMAP4 Compatibility with IMAP2bis
Alternative Format: Original Text Document
RFC 2061 IMAP4 Compatibility December 1996
FLAGS.SILENT, +FLAGS.SILENT, and -FLAGS.SILENT store data items
Use the corresponding non-SILENT versions and ignore the
untagged FETCH responses which come back.
UID fetch data item and the UID commands
No functional equivalent.
CLOSE command
No functional equivalent.
In IMAP2bis, the TRYCREATE special information token is sent as a
separate unsolicited OK response instead of inside the NO response.
IMAP2bis is ambiguous about whether or not flags or internal dates
are preserved on COPY. It is impossible to know what behavior is
supported by the server.
IMAP4 server interoperability with IMAP2bis clients
The only interoperability problem between an IMAP4 server and a
well-written IMAP2bis client is an incompatibility with the use of
"\" in quoted strings. This is best avoided by using literals
instead of quoted strings if "\" or is embedded in the string.
Security Considerations
Security issues are not discussed in this memo.
Author's Address
Mark R. Crispin
Networks and Distributed Computing
University of Washington
4545 15th Aveneue NE
Seattle, WA 98105-4527
Phone: (206) 543-5762
EMail:
Crispin Informational