Try https://wiki.mozilla.org/Thunderbird:Debugging
Aki > On 08/12/2021 15:04 post...@aecperformance.com wrote: > > > OK I'm confused. It looks like I'm connected to the mailbox but when I try to > 'Get Messages' now it says that the server has disconnected. > In the mail.log file I see this (again): > Dec 8 12:55:43 softlinksys dovecot: imap-login: Login: user=, method=PLAIN, > rip=67.8.3.170, lip=194.163.45.150, mpid=67110, TLS, session= > Dec 8 12:55:43 softlinksys dovecot: imap-login: Login: user=, method=PLAIN, > rip=67.8.3.170, lip=194.163.45.150, mpid=67111, TLS, session= > Dec 8 12:55:43 softlinksys dovecot: imap(smok...@sizzelicks.com)<67110>: > Connection closed (No commands sent) in=0 out=387 deleted=0 expunged=0 > trashed=0 hdr_count=0 hdr_bytes=0 body_count=0 body_bytes=0 > Dec 8 12:55:43 softlinksys dovecot: imap(smok...@sizzelicks.com)<67111>: > Connection closed (No commands sent) in=0 out=388 deleted=0 expunged=0 > trashed=0 hdr_count=0 hdr_bytes=0 body_count=0 body_bytes=0 > > Please help me. > How can I fix this problem? > > -----Original Message----- > From: dovecot <dovecot-boun...@dovecot.org> On Behalf Of Robert L Mathews > Sent: Tuesday, December 7, 2021 7:46 PM > To: dovecot@dovecot.org > Subject: Re: Mailbox connection fails: Connection closed (No commands sent) > Help please > > On 12/7/21 2:49 PM, Alexander Dalloz wrote: > > > Use a not expired certificate. > > > > $ openssl s_client -connect 194.163.45.150:993 > > CONNECTED(00000003) > > depth=3 O = Digital Signature Trust Co., CN = DST Root CA X3 verify > > error:num=10:certificate has expired notAfter=Sep 30 14:01:15 2021 GMT > > That error's happening because you (Alexander) are using an old openssl > version that has the problem described on: > > https://www.openssl.org/blog/blog/2021/09/13/LetsEncryptRootCertExpire/ > > That's not the problem that the original poster is having unless Thunderbird > also has the same problem, which it may; see: > > > https://community.letsencrypt.org/t/note-regarding-transition-to-r3-intermediate-with-firefox-or-thunderbird/140049 > > > https://www.arcanoae.com/adding-lets-encrypts-new-root-and-intermediate-certificates-to-mozilla-applications/ > > In any case, this works fine with OpenSSL 1.1 or later: > > $ openssl s_client -connect mail.sizzelicks.com:993 > ... > * OK [CAPABILITY IMAP4rev1 SASL-IR LOGIN-REFERRALS ID ENABLE IDLE > LITERAL+ AUTH=PLAIN AUTH=LOGIN] Dovecot (Ubuntu) ready. > > -- > Robert L Mathews, Tiger Technologies, http://www.tigertech.net/
