Why are TheBat and Roundcube emails not syncing?

Question

Mail server

Hello. Using the same account in TheBat and Roundcube, outgoing emails are not synced, why? How to fix?
If the letter is incoming, then it is both there and there, and if the letter is outgoing, for example from thebat, then it is not in the outgoing ones in Roundcube, why? How to fix?

Answer 1

https://github.com/roundcube/roundcubemail/issues/3374
and many others why
, judging by Sipanel, you do not have full control over the cube, so as it is

Answer 2

In the program settings, it is necessary to synchronize the folders of the program and the mail itself, in particular the sent ones. And of course the connection protocol is IMAP and not POP3