search for: tls_early_post_process_client_hello

Displaying 10 results from an estimated 10 matches for "tls_early_post_process_client_hello".

Unable to disable TLSv1.3 or fallback to TLSv1.2 when 1 cipher is disabled
2020 May 08
2
Unable to disable TLSv1.3 or fallback to TLSv1.2 when 1 cipher is disabled
...n May 8 11:15:47 ns1 dovecot: imap-login: Debug: SSL alert: where=0x4008, ret=582: fatal protocol version May 8 11:15:47 ns1 dovecot: imap-login: Debug: SSL: where=0x2002, ret=-1: error May 8 11:15:47 ns1 dovecot: imap-login: Debug: SSL error: SSL_accept() failed: error:14209102:SSL routines:tls_early_post_process_client_hello:unsupported protocol May 8 11:15:47 ns1 dovecot: imap-login: Disconnected (disconnected before auth was ready, waited 0 secs): user=<>, rip=XX.XX.XX.XX, lip=XX.XX.XX.XX, TLS handshaking: SSL_accept() failed: error:14209102:SSL routines:tls_early_post_process_client_hello:unsupported prot...
Unable to disable TLSv1.3 or fallback to TLSv1.2 when 1 cipher is disabled
2020 May 08
2
Unable to disable TLSv1.3 or fallback to TLSv1.2 when 1 cipher is disabled
...n May 8 11:15:47 ns1 dovecot: imap-login: Debug: SSL alert: where=0x4008, ret=582: fatal protocol version May 8 11:15:47 ns1 dovecot: imap-login: Debug: SSL: where=0x2002, ret=-1: error May 8 11:15:47 ns1 dovecot: imap-login: Debug: SSL error: SSL_accept() failed: error:14209102:SSL routines:tls_early_post_process_client_hello:unsupported protocol May 8 11:15:47 ns1 dovecot: imap-login: Disconnected (disconnected before auth was ready, waited 0 secs): user=<>, rip=XX.XX.XX.XX, lip=XX.XX.XX.XX, TLS handshaking: SSL_accept() failed: error:14209102:SSL routines:tls_early_post_process_client_hello:unsupported prot...
problem with client using TLS
2020 Jul 18
2
problem with client using TLS
...ere=0x2001, ret=1: before SSL initialization Jul 18 12:24:57 imap-login: Debug: SSL alert: where=0x4008, ret=582: fatal protocol version Jul 18 12:24:57 imap-login: Debug: SSL: where=0x2002, ret=-1: error Jul 18 12:24:57 imap-login: Debug: SSL error: SSL_accept() failed: error:14209102:SSL routines:tls_early_post_process_client_hello:unsupported protocol Jul 18 12:24:57 imap-login: Info: Disconnected (no auth attempts in 0 secs): user=<>, rip=87.182.44.142, lip=185.84.81.115, TLS handshaking: SSL_accept() failed: error:14209102:SSL routines:tls_early_post_process_client_hello:unsupported protocol, session=<uppwr7SqrrpX...
Unable to disable TLSv1.3 or fallback to TLSv1.2 when 1 cipher is disabled
2020 May 08
0
Unable to disable TLSv1.3 or fallback to TLSv1.2 when 1 cipher is disabled
...imap-login: Debug: SSL alert: where=0x4008, > ret=582: fatal protocol version > May? 8 11:15:47 ns1 dovecot: imap-login: Debug: SSL: where=0x2002, > ret=-1: error > May? 8 11:15:47 ns1 dovecot: imap-login: Debug: SSL error: SSL_accept() > failed: error:14209102:SSL > routines:tls_early_post_process_client_hello:unsupported protocol > May? 8 11:15:47 ns1 dovecot: imap-login: Disconnected (disconnected > before auth was ready, waited 0 secs): user=<>, rip=XX.XX.XX.XX, > lip=XX.XX.XX.XX, TLS handshaking: SSL_accept() failed: > error:14209102:SSL > routines:tls_early_post_process_clie...
Unable to disable TLSv1.3 or fallback to TLSv1.2 when 1 cipher is disabled
2020 May 09
0
Unable to disable TLSv1.3 or fallback to TLSv1.2 when 1 cipher is disabled
...8 11:15:47 ns1 dovecot: imap-login: Debug: SSL alert: where=0x4008, ret=582: fatal protocol version > May 8 11:15:47 ns1 dovecot: imap-login: Debug: SSL: where=0x2002, ret=-1: error > May 8 11:15:47 ns1 dovecot: imap-login: Debug: SSL error: SSL_accept() failed: error:14209102:SSL routines:tls_early_post_process_client_hello:unsupported protocol > May 8 11:15:47 ns1 dovecot: imap-login: Disconnected (disconnected before auth was ready, waited 0 secs): user=<>, rip=XX.XX.XX.XX, lip=XX.XX.XX.XX, TLS handshaking: SSL_accept() failed: error:14209102:SSL routines:tls_early_post_process_client_hello:unsupported pro...
Apple Mail Since upgrade to dovecot 2.3.x unable to connect
2020 Aug 17
2
Apple Mail Since upgrade to dovecot 2.3.x unable to connect
...buntu 18.04 to 20.04, thereby upgrading dovecot from 2.2.x to 2.3.x. | |Since then, some older versions of apple's mail.app (bundled with el Capitano, released in 2016) no longer connect. When I turn on SSL debugging, I see:| |Debug: SSL error: SSL_accept() failed: error:14209102:SSL routines:tls_early_post_process_client_hello:unsupported protocol imap-login: Debug: SSL error: SSL_accept() syscall failed: Invalid argument| || |Unfortunately, it doesn't reveal the name of the unsupported protocol. Also, what about the failed syscall? Does dovecot try and fail to open some file?| |Here are the contents of /etc/dovec...
Dovecot won't accept IMAP TLS 1 connections from older devices [SOLVED]
2020 Oct 16
2
Dovecot won't accept IMAP TLS 1 connections from older devices [SOLVED]
...ng already.? This is for those of us that have to cover a lot of bases. I upgraded my mail server from Ubuntu 18.04.1 to Ubuntu 20.04.1, and found that older Mac-books and iPads (and probably other devices) could no longer establish IMAP connections to Dovecot. Dovecot logged: ?? SSL routines:tls_early_post_process_client_hello:unsupported protocol and TCP/IP traces showed that it dropped the connection after the client's initial HELLO.? I tested what kinds of connections Dovecot would accept with (for example): ??? openssl s_client -tls1_1 -connect localhost:993?? # Test whether TLSv1.1 is accepted - received &...
Apple Mail Since upgrade to dovecot 2.3.x unable to connect
2020 Aug 17
1
Apple Mail Since upgrade to dovecot 2.3.x unable to connect
...buntu 18.04 to 20.04, thereby upgrading dovecot from 2.2.x to 2.3.x. | |Since then, some older versions of apple's mail.app (bundled with el Capitano, released in 2016) no longer connect. When I turn on SSL debugging, I see:| |Debug: SSL error: SSL_accept() failed: error:14209102:SSL routines:tls_early_post_process_client_hello:unsupported protocol imap-login: Debug: SSL error: SSL_accept() syscall failed: Invalid argument| || |Unfortunately, it doesn't reveal the name of the unsupported protocol. Also, what about the failed syscall? Does dovecot try and fail to open some file?| |Here are the contents of /etc/dovec...
Apple Mail Since upgrade to dovecot 2.3.x unable to connect
2020 Aug 17
0
Apple Mail Since upgrade to dovecot 2.3.x unable to connect
...dovecot from 2.2.x to 2.3.x. > | > > |Since then, some older versions of apple's mail.app (bundled with el > Capitano, released in 2016) no longer connect. When I turn on SSL > debugging, I see:| > > |Debug: SSL error: SSL_accept() failed: error:14209102:SSL > routines:tls_early_post_process_client_hello:unsupported protocol > imap-login: Debug: SSL error: SSL_accept() syscall failed: Invalid argument| > > || > > |Unfortunately, it doesn't reveal the name of the unsupported protocol. > Also, what about the failed syscall? Does dovecot try and fail to open > some file?| &g...
TLS handshake failure - Client Helo rejected
2018 Oct 06
1
TLS handshake failure - Client Helo rejected
...ep 15 23:19:02 debian2 dovecot: imap-login: Debug: SSL alert: where=0x4008, ret=598: fatal unknown Sep 15 23:19:02 debian2 dovecot: imap-login: Debug: SSL: where=0x2002, ret=-1: error Sep 15 23:19:02 debian2 dovecot: imap-login: Debug: SSL error: SSL_accept() failed: error:14209175:SSL routines:tls_early_post_process_client_hello:inappropriate fallback Sep 15 23:19:02 debian2 dovecot: imap-login: Debug: SSL error: SSL_accept() syscall failed: Invalid argument Sep 15 23:19:02 debian2 dovecot: imap-login: Disconnected (no auth attempts in 0 secs): user=<>, rip=XXX.XXX.XXX.XXX, lip=XXX.XXX.XXX.XXX,TLS handshaking: SSL...