In IMAP's RFC (6.3.1 SELECT Command) is described a one element of
SELECT command response:
OK [UNSEEN <n>]
The message sequence number of the first unseen
message in the mailbox. If this is missing, the
client can not make any assumptions about the first
unseen message in the mailbox, and needs to issue a
SEARCH command if it wants to find it.
So, I'm just thinking loud. Can we assume that there are no unseen
messages in the mailbox when server doesn't include UNSEEN in the
response? This is true for dovecot, how about others? We could skip one
SEARCH call.
--
Aleksander 'A.L.E.C' Machniak http://alec.pl gg:2275252
LAN Management System Developer http://lms.org.pl
Roundcube Webmail Developer http://roundcube.net
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