https://bugs.exim.org/show_bug.cgi?id=2255
tomputer <[email protected]> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |[email protected] --- Comment #6 from tomputer <[email protected]> --- Hi, We are also experiencing the same problem after upgrading from 4.89 to 4.90. Software versions are: - Microsoft Outlook 2016 MSO (16.0.9029.2106) - Exim version 4.90_1 The workaround with different server names for incoming and outgoing servers works. It looks like the client caches something (TLS session?) for the server name, either from the incoming our outoing connection. We are not able to reproduce this with Swaks (Debian) or Apple Mail (macOS and iOS) so it may be a Windows/Outlook specific issue. Exim debug log (real names and IP's are masked): 9919 SMTP>> 250-server.example.com Hello customer.direct-adsl.nl [11.11.11.11] 9919 250-SIZE 52428800 9919 250-8BITMIME 9919 250-PIPELINING 9919 250-AUTH PLAIN LOGIN 9919 250-STARTTLS 9919 250 HELP 9919 SMTP<< STARTTLS 9919 openssl option, adding from 1104000: 1000000 (no_sslv2 +no_sslv3) 9919 openssl option, adding from 1104000: 2000000 (no_sslv3) 9919 setting SSL CTX options: 0x3104000 9919 Diffie-Hellman initialized from default with 2048-bit prime 9919 ECDH OpenSSL < 1.0.2: temp key parameter settings: overriding "auto" with "prime256v1" 9919 ECDH: curve 'prime256v1' 9919 ECDH: enabled 'prime256v1' curve 9919 tls_certificate file /etc/exim.pem 9919 tls_privatekey file /etc/exim.pem 9919 Initialized TLS 9919 required ciphers: ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-$ 9919 host in tls_verify_hosts? no (option unset) 9919 host in tls_try_verify_hosts? no (option unset) 9919 SMTP>> 220 TLS go ahead 9919 Calling SSL_accept 9919 SSL info: before/accept initialization 9919 SSL info: before/accept initialization 9919 Received TLS SNI "server.example.com" (unused for certificate selection) 9919 SSL info: SSLv3 read client hello A 9919 SSL info: SSLv3 write server hello A 9919 SSL info: SSLv3 write certificate A 9919 SSL info: SSLv3 write server done A 9919 SSL info: SSLv3 flush data 9919 SSL info: SSLv3 read client certificate A 9919 LOG: MAIN 9919 TLS error on connection from customer.direct-adsl.nl (PC) [11.11.11.11] (SSL_accept): error:00000000:lib(0):func(0):reason(0) 9919 TLS failed to start 9919 LOG: smtp_connection MAIN 9919 SMTP connection from customer.direct-adsl.nl (PC) [11.11.11.11] closed by EOF 9919 search_tidyup called 9919 SMTP>>(close on process exit) -- You are receiving this mail because: You are on the CC list for the bug. -- ## List details at https://lists.exim.org/mailman/listinfo/exim-dev Exim details at http://www.exim.org/ ##
