On 1.2.2010, at 9.52, Michael M. Slusarz wrote: > Not technically a bug, but a small waste of bandwidth: it seems (at least as > of 1.2.10) that if neither CONDSTORE/QRESYNC are enabled dovecot still sends > HIGHESTMODSEQ info:
It's intentional. From rfc 4551: This document adds two new response codes, HIGHESTMODSEQ and NOMODSEQ. One of those response codes MUST be returned in the OK untagged response for a successful SELECT/EXAMINE command.