Hi,
Did you find a solution ? I have the same problem with all browsers (firefox, chrome) after updating 1.5.2 to 1.6.2.
It's like if it connect then immediately disconnect. I don't understand why.
userlogins.log:
[16-Sep-2023 00:47:19 +0000]: <oqfadgk5> Successful login for chris (ID: 1) from 192.168.5.3 in session oqfadgk5724en95l
My dovecot logs:
Sep 15 20:47:19 imap-login: Info: Login: user=<chris>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, mpid=7766, secured, session=<Zj5eQG8FgOh/AAAB>
Sep 15 20:47:19 imap(chris)<7766><Zj5eQG8FgOh/AAAB>: Info: Disconnected: Logged out in=82 out=803 deleted=0 expunged=0 trashed=0 hdr_count=0 hdr_bytes=0 body_count=0 body_bytes=0