I tried both Thunderbird and Outlook 2007. SMTP port in both was set to 25. I experimented with all combinations of SSL/TLS settings available in TB and Outlook as well.
Thunderbird though displayed the following message (TLS/25): Sending of message failed. An error occured sending mail: Unable to connect to SMTP server one.mailexpeditor.com via STARTTLS since it doesn't offer STARTTLS In EHLO response. Server's maillog responded with even less information: Jul 8 15:15:43 one postfix/smtpd[11248]: connect from host86-171-60-46.range86-171.btcentralplus.com[86.171.60.46] Jul 8 15:15:43 one postfix/smtpd[11248]: disconnect from host86-171-60-46.range86-171.btcentralplus.com[86.171.60.46] I also uncommented smtps and three following lines in master.cf, reloaded postfix but still no go. smtps inet n - n - - smtpd -o smtpd_tls_wrappermode=yes -o smtpd_sasl_auth_enable=yes -o smtpd_client_restrictions=permit_sasl_authenticated,reject After trying Outlook with SSL/25, server logged: Jul 8 15:19:00 one postfix/smtpd[11248]: connect from host86-171-60-46.range86-171.btcentralplus.com[86.171.60.46] Jul 8 15:19:00 one postfix/smtpd[11248]: lost connection after UNKNOWN from host86-171-60-46.range86-171.btcentralplus.com[86.171.60.46] Jul 8 15:19:00 one postfix/smtpd[11248]: disconnect from host86-171-60-46.range86-171.btcentralplus.com[86.171.60.46] Many thanks George On Wed, Jul 8, 2009 at 2:52 PM, Brian Evans - Postfix List < [email protected]> wrote: > New Old Stk wrote: > > > > > > Sorry Brian, i didn't post the full command I was testing the > > connection with. Yes, it had -starttls among other things and it did > > work fine. I was able to connect, AUTH PLAIN generated string (below) > > and get 235 2.0.0 Authentication successful: > > > > #perl -MMIME::Base64 -e 'print encode_base64("\0username\0password")' > > /AHVzZXJuYW1lAlXXXX&YYYYZZZZ/ > > #openssl s_client -starttls smtp -crlf -connect localhost:25 > > > > > 8. If I set mail client to authenticate and use SSL result in log is > > as follows: > > > > > > > Jun 30 16:47:16 one postfix/smtpd[23346]: connect from > > host86-165-212-234.range86-165.btcentralplus.com > < > http://host86-165-212-234.range86-165.btcentralplus.com>[86.165.212.234] > > > Jun 30 16:47:16 one postfix/smtpd[23346]: lost connection after > > UNKNOWN from host86-165-212-234.range86-165.btcentralplus.com > > > > <http://host86-165-212-234.range86-165.btcentralplus.com>[86.165.212.234] > > > Jun 30 16:47:16 one postfix/smtpd[23346]: disconnect from > > host86-165-212-234.range86-165.btcentralplus.com > < > http://host86-165-212-234.range86-165.btcentralplus.com>[86.165.212.234] > > > > > Some clients use "SSL" to mean the archaic smtps protocol (most famously > Outlook > and Outlook Express) on port 465. > > If you uncomment the smtps line in master.cf, you may see a difference. > > Most modern clients, such as Squirelmail and Thunderbird, use STARTTLS > as one of their options when sending email. > > Brian > > >
