I have read the man pages, release and upgrade notes again, checked cyrus.conf and imapd.conf settings, restarted Cyrus imapd and saslauthd daemons, verified configuration and spool files — and still found no cause.
Then I completely removed my account and all assets from FairEmail on my Android Motorola phone, Asus pad, and then set them again manually, step by step, with different connection modes (SSL/TLS :933, STARTTLS :143, insecure) — all of them are accepted, but the sync soon gets stuck and a warning message is issued with always the same error code:
For input string: "1844674407152067968"
FairEmail is the best MUA I have ever seen: lean, secure, fast, with a clear and convenient user interface — despite of being full-featured and standards-compliant, with hundred of preconfigured settings of commercial providers, and with detailed logs:
My mail is hosted on sala.online.lt [217.147.40.110] and serves, among others, the on.lt domain. Faircode.eu is a domain of the developer. This log is laid out here from bottom to the top. Sorry, I am not a programmer and do not understand this log. I guess there is a tiny software bug, that only emerged after the upgrade.
