Maybe we're doing something wrong in the process, but it seems that every time we perform offline maintenance (upgrade, whatever) on Cyrus IMAPd ... our users complain that TLS breaks afterward, but then fixes itself in time. I've demonstrated this to myself just now with the upgrade to 2.3.13 from 2.2.12. My TLS session is cached but broken with the new setup (or for whatever other reason). That is, even after restarting Thunderbird, I get the following: Jan 16 06:31:50 imapsrv imap[19690]: [ID 239158 local6.notice] STARTTLS negotiation failed: bva-172.our.com Is there a way to zero/flush all TLS cached sessions? I have to imagine there is, but I don't know how. ---- Cyrus Home Page: http://cyrusimap.web.cmu.edu/ Cyrus Wiki/FAQ: http://cyrusimap.web.cmu.edu/twiki List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html