Oops! I forgot to check SSL. My client now seems to start a TLS session and still nothing. Here is the log with the SSL error. Thanks.
Jan 2 13:02:11 fedora postfix/smtpd[20531]: connection established Jan 2 13:02:11 fedora postfix/smtpd[20531]: master_notify: status 0 Jan 2 13:02:11 fedora postfix/smtpd[20531]: name_mask: resource Jan 2 13:02:11 fedora postfix/smtpd[20531]: name_mask: software Jan 2 13:02:11 fedora postfix/smtpd[20531]: connect from adsl-012-034-567-890.sip.myisp.net[12.34.56.78] Jan 2 13:02:11 fedora postfix/smtpd[20531]: match_list_match: adsl-012-034-567-890.sip.myisp.net: no match Jan 2 13:02:11 fedora postfix/smtpd[20531]: match_list_match: 12.34.56.78: no match Jan 2 13:02:11 fedora postfix/smtpd[20531]: match_list_match: adsl-012-034-567-890.sip.myisp.net: no match Jan 2 13:02:11 fedora postfix/smtpd[20531]: match_list_match: 12.34.56.78: no match Jan 2 13:02:11 fedora postfix/smtpd[20531]: match_hostname: adsl-012-034-567-890.sip.myisp.net ~? 192.168.1.0/28 Jan 2 13:02:11 fedora postfix/smtpd[20531]: match_hostaddr: 12.34.56.78 ~? 192.168.1.0/28 Jan 2 13:02:11 fedora postfix/smtpd[20531]: match_hostname: adsl-012-034-567-890.sip.myisp.net ~? 127.0.0.0/8 Jan 2 13:02:11 fedora postfix/smtpd[20531]: match_hostaddr: 12.34.56.78 ~? 127.0.0.0/8 Jan 2 13:02:11 fedora postfix/smtpd[20531]: match_hostname: adsl-012-034-567-890.sip.myisp.net ~? 12.34.56.78 Jan 2 13:02:11 fedora postfix/smtpd[20531]: match_hostaddr: 12.34.56.78 ~? 12.34.56.78 Jan 2 13:02:11 fedora postfix/smtpd[20531]: >>> START Client host RESTRICTIONS <<< Jan 2 13:02:11 fedora postfix/smtpd[20531]: generic_checks: name=permit_mynetworks Jan 2 13:02:11 fedora postfix/smtpd[20531]: permit_mynetworks: adsl-012-034-567-890.sip.myisp.net 12.34.56.78 Jan 2 13:02:11 fedora postfix/smtpd[20531]: match_hostname: adsl-012-034-567-890.sip.myisp.net ~? 192.168.1.0/28 Jan 2 13:02:11 fedora postfix/smtpd[20531]: match_hostaddr: 12.34.56.78 ~? 192.168.1.0/28 Jan 2 13:02:11 fedora postfix/smtpd[20531]: match_hostname: adsl-012-034-567-890.sip.myisp.net ~? 127.0.0.0/8 Jan 2 13:02:11 fedora postfix/smtpd[20531]: match_hostaddr: 12.34.56.78 ~? 127.0.0.0/8 Jan 2 13:02:11 fedora postfix/smtpd[20531]: match_hostname: adsl-012-034-567-890.sip.myisp.net ~? 12.34.56.78 Jan 2 13:02:11 fedora postfix/smtpd[20531]: match_hostaddr: 12.34.56.78 ~? 12.34.56.78 Jan 2 13:02:11 fedora postfix/smtpd[20531]: generic_checks: name=permit_mynetworks status=1 Jan 2 13:02:11 fedora postfix/smtpd[20531]: > adsl-012-034-567-890.sip.myisp.net[12.34.56.78]: 220 myDomName.com ESMTP Postfix Jan 2 13:02:11 fedora postfix/smtpd[20531]: < adsl-012-034-567-890.sip.myisp.net[12.34.56.78]: EHLO [192.168.0.105] Jan 2 13:02:11 fedora postfix/smtpd[20531]: >>> START Helo command RESTRICTIONS <<< Jan 2 13:02:11 fedora postfix/smtpd[20531]: generic_checks: name=reject_invalid_hostname Jan 2 13:02:11 fedora postfix/smtpd[20531]: reject_invalid_hostaddr: [192.168.0.105] Jan 2 13:02:11 fedora postfix/smtpd[20531]: generic_checks: name=reject_invalid_hostname status=0 Jan 2 13:02:11 fedora postfix/smtpd[20531]: >>> END Helo command RESTRICTIONS <<< Jan 2 13:02:11 fedora postfix/smtpd[20531]: > adsl-012-034-567-890.sip.myisp.net[12.34.56.78]: 250-myDomName.com Jan 2 13:02:11 fedora postfix/smtpd[20531]: > adsl-012-034-567-890.sip.myisp.net[12.34.56.78]: 250-PIPELINING Jan 2 13:02:11 fedora postfix/smtpd[20531]: > adsl-012-034-567-890.sip.myisp.net[12.34.56.78]: 250-SIZE 10240000 Jan 2 13:02:11 fedora postfix/smtpd[20531]: > adsl-012-034-567-890.sip.myisp.net[12.34.56.78]: 250-VRFY Jan 2 13:02:11 fedora postfix/smtpd[20531]: > adsl-012-034-567-890.sip.myisp.net[12.34.56.78]: 250-ETRN Jan 2 13:02:11 fedora postfix/smtpd[20531]: match_list_match: adsl-012-034-567-890.sip.myisp.net: no match Jan 2 13:02:11 fedora postfix/smtpd[20531]: match_list_match: 12.34.56.78: no match Jan 2 13:02:11 fedora postfix/smtpd[20531]: > adsl-012-034-567-890.sip.myisp.net[12.34.56.78]: 250-STARTTLS Jan 2 13:02:11 fedora postfix/smtpd[20531]: > adsl-012-034-567-890.sip.myisp.net[12.34.56.78]: 250-ENHANCEDSTATUSCODES Jan 2 13:02:11 fedora postfix/smtpd[20531]: > adsl-012-034-567-890.sip.myisp.net[12.34.56.78]: 250-8BITMIME Jan 2 13:02:11 fedora postfix/smtpd[20531]: > adsl-012-034-567-890.sip.myisp.net[12.34.56.78]: 250 DSN Jan 2 13:02:11 fedora postfix/smtpd[20531]: < adsl-012-034-567-890.sip.myisp.net[12.34.56.78]: STARTTLS Jan 2 13:02:11 fedora postfix/smtpd[20531]: > adsl-012-034-567-890.sip.myisp.net[12.34.56.78]: 220 2.0.0 Ready to start TLS Jan 2 13:02:11 fedora postfix/smtpd[20531]: setting up TLS connection from adsl-012-034-567-890.sip.myisp.net[12.34.56.78] Jan 2 13:02:11 fedora postfix/smtpd[20531]: adsl-012-034-567-890.sip.myisp.net[12.34.56.78]: TLS cipher list "ALL:!EXPORT:!LOW:+RC4:@STRENGTH" Jan 2 13:02:11 fedora postfix/smtpd[20531]: auto_clnt_open: connected to private/tlsmgr Jan 2 13:02:11 fedora postfix/smtpd[20531]: send attr request = seed Jan 2 13:02:11 fedora postfix/smtpd[20531]: send attr size = 32 Jan 2 13:02:11 fedora postfix/smtpd[20531]: private/tlsmgr: wanted attribute: status Jan 2 13:02:11 fedora postfix/smtpd[20531]: input attribute name: status Jan 2 13:02:11 fedora postfix/smtpd[20531]: input attribute value: 0 Jan 2 13:02:11 fedora postfix/smtpd[20531]: private/tlsmgr: wanted attribute: seed Jan 2 13:02:11 fedora postfix/smtpd[20531]: input attribute name: seed Jan 2 13:02:11 fedora postfix/smtpd[20531]: input attribute value: 04iDdMchtEcMhHMPlZE1PnA4hFVBivxAgufuUinTYeM= Jan 2 13:02:11 fedora postfix/smtpd[20531]: private/tlsmgr: wanted attribute: (list terminator) Jan 2 13:02:11 fedora postfix/smtpd[20531]: input attribute name: (end) Jan 2 13:02:11 fedora postfix/smtpd[20531]: SSL_accept:before/accept initialization Jan 2 13:02:11 fedora postfix/smtpd[20531]: read from 02269768 [0227E418] (11 bytes => -1 (0xFFFFFFFF)) Jan 2 13:02:11 fedora postfix/smtpd[20531]: read from 02269768 [0227E418] (11 bytes => 11 (0xB)) Jan 2 13:02:11 fedora postfix/smtpd[20531]: 0000 16 03 01 00 9d 01 00 00|99 03 01 ........ ... ……. Jan 2 13:02:11 fedora postfix/smtpd[20531]: 0090 19 00 0b 00 02 01 ...... Jan 2 13:02:11 fedora postfix/smtpd[20531]: 0096 - <SPACES/NULLS> Jan 2 13:02:11 fedora postfix/smtpd[20531]: SSL_accept:SSLv3 read client hello B Jan 2 13:02:11 fedora postfix/smtpd[20531]: SSL_accept:SSLv3 write server hello A Jan 2 13:02:11 fedora postfix/smtpd[20531]: SSL_accept:SSLv3 write certificate A Jan 2 13:02:11 fedora postfix/smtpd[20531]: SSL_accept:SSLv3 write server done A Jan 2 13:02:11 fedora postfix/smtpd[20531]: write to 02269768 [0227AAB0] (756 bytes => 756 (0x2F4)) …… Jan 2 13:02:11 fedora postfix/smtpd[20531]: 02e0 0f 67 ef 48 36 a9 7b 92|5c be b2 16 03 01 00 04 .g.H6.{. \....... Jan 2 13:02:11 fedora postfix/smtpd[20531]: 02f0 0e . Jan 2 13:02:11 fedora postfix/smtpd[20531]: 02f1 - <SPACES/NULLS> Jan 2 13:02:11 fedora postfix/smtpd[20531]: SSL_accept:SSLv3 flush data Jan 2 13:02:11 fedora postfix/smtpd[20531]: read from 02269768 [0227E41B] (5 bytes => -1 (0xFFFFFFFF)) Jan 2 13:02:12 fedora postfix/smtpd[20531]: SSL_accept error from adsl-012-034-567-890.sip.myisp.net[12.34.56.78]: -1 Jan 2 13:02:12 fedora postfix/smtpd[20531]: match_hostname: adsl-012-034-567-890.sip.myisp.net ~? 192.168.1.0/28 Jan 2 13:02:12 fedora postfix/smtpd[20531]: match_hostaddr: 12.34.56.78 ~? 192.168.1.0/28 Jan 2 13:02:12 fedora postfix/smtpd[20531]: match_hostname: adsl-012-034-567-890.sip.myisp.net ~? 127.0.0.0/8 Jan 2 13:02:12 fedora postfix/smtpd[20531]: match_hostaddr: 12.34.56.78 ~? 127.0.0.0/8 Jan 2 13:02:12 fedora postfix/smtpd[20531]: match_hostname: adsl-012-034-567-890.sip.myisp.net ~? 12.34.56.78 Jan 2 13:02:12 fedora postfix/smtpd[20531]: match_hostaddr: 12.34.56.78 ~? 12.34.56.78 Jan 2 13:02:12 fedora postfix/smtpd[20531]: lost connection after STARTTLS from adsl-012-034-567-890.sip.myisp.net[12.34.56.78] Jan 2 13:02:12 fedora postfix/smtpd[20531]: disconnect from adsl-012-034-567-890.sip.myisp.net[12.34.56.78] Jan 2 13:02:12 fedora postfix/smtpd[20531]: master_notify: status 1 Jan 2 13:02:12 fedora postfix/smtpd[20531]: connection closed