Message sorting in thread

[MaySky]

======== Required information ====
- Installation package - iRedMail-0.8.6
- Roundcube webmail - 0.9.5
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): MySQL
- OS: Ubuntu Server 12.04.4
====
Hello.
I've changed the view in folder from List to Threads.
I've checked "Place replies in the folder of the message being replied to" in Settings - Preferences - Composing Messages.
Threads are great, but their sorting is smth that makes me crazy.
On my screenshot messages are sorted by Date descending.
But messages in thread are sorted ascending. So I see only the first message in thread when it's collapsed. And there is mess in dates in my folder.
I need to make
a) messages order descending in thread
b) show the last message when thread is collapsed. So I won't search the whole folder for the message that is hidden in some thread.
Any advices?

[ABerglund]

I don't believe that is configurable. Mine is the same way. Hasn't bothered me seriously, so I never considered it before.

[MaySky]

On some forum (I don't remember it's name) I see a thought that roundcube doesn't use it's own engine to sort messages in threads. It just use THREAD command from IMAP server.

Is it true?

Is it's so - I'll try my luck at Dovecot forum.

[ABerglund]

That is correct. It does use the THREAD command. Good luck on your quest.