Hi Nathan, Did you get any help with this, or figure it out yourself by now? I have been doing similar things on a CoxBusiness static IP for years, so maybe I can help. (Also Mike's latest silliness makes me wish for more erudite discussions on PLUG. Smart questions going unanswered only makes it worse? :-) I included a couple quick "reactions" to your email (below) but maybe this is moot now, a week on. -Matt On Thu, 2018-04-05 at 20:29 -0700, Nathan O'Brennan wrote: > Hey all, > > I use Let's Encrypt on my web server, and I use the same certificate for > my postfix and dovecot services. Today I realized that my phone has not > alerted me to new messages. I logged into my webmail via Firefix (I > don't usually log into webmail until my phone says I have mail) and sure > enough, I had quite a bit of mail, so I opened my BlueMail app and it > will not connect because my certificate cannot be verified. > > Firefox works fine on webmail. > Chrome works fine on webmail. > Postfix, Apache, and Dovecot all operate correctly without warnings. > > Bluemail, Thunderbird, and Kmail all fail to connect because the > certificate cannot be verified. You did not attach the intermediate certificates? > I had to accept the certificate to use it on my phone. Has Let's Encrypt > changed something? Or what? I don't get any errors on my server, dovecot > reports a username of <> during the initial handshake, which I think is > normal, then reports an error only when my phone attempts to connect > which looks like: > > > Apr 05 20:26:23 codezilla.xyz dovecot[1699]: imap-login: Disconnected > (no auth attempts in 3 secs): user=<>, rip=70.xxx.aaa.162, > lip=138.197.192.135, TLS handshaking: SSL_accept() failed: > error:14094416:SSL routines:ssl3_read_bytes:sslv3 alert certificate > unknown: SSL alert number 46, session= > > Best I can tell this is a failure on my server's attempt to verify my > phone's certificate? Your phone has an IMAP client certificate? I missed that part. The error message actually looks like mine when certificates do not validate and clients do not attempt to log in. > Any help would be appreciated. > --------------------------------------------------- > PLUG-discuss mailing list - PLUG-discuss@lists.phxlinux.org > To subscribe, unsubscribe, or to change your mail settings: > http://lists.phxlinux.org/mailman/listinfo/plug-discuss --------------------------------------------------- PLUG-discuss mailing list - PLUG-discuss@lists.phxlinux.org To subscribe, unsubscribe, or to change your mail settings: http://lists.phxlinux.org/mailman/listinfo/plug-discuss