>From today Dovecot has started support THREAD=ORDEREDSUBJECT IMAP extension.
By my calling, it has been happened, thanks for Timo, its developer, he has implemented supporting of this function. Following, Dovecot supports not only THREAD=REFERENCES, but and THREAD=ORDEREDSUBJECT what is necessary for SOGo appliance functioning. Look at diffs at http://hg.dovecot.org/dovecot-2.1/rev/670f467ff5c5 and at source files at http://hg.dovecot.org/dovecot-2.1/archive/670f467ff5c5.zip -- users@sogo.nu https://inverse.ca/sogo/lists