Thanks for reply. I don't know how (and if) SquirrelMail can be configured to use STARTTLS. It > is possible, however, to configure exim to listen on another port using the > TLS-on-connect convention.
Secure SMTP servers use tcp 465 port by TLS default.Source address: http://www.squirrelmail.org/docs/admin/admin-5.html#ss5.5 i tried but did not work. However, if SquirrelMail and exim are on the same host, connecting via the > loopback interface (which seems to be case, since you specified 127.0.0.1as > the SMTP host), you should not need to worry that the connections are > encrypted. Yes,Squirrelmail and Postfix are on the same host.Yes,I know if i connect to localhost,I dont need TLS but some clients are using Thunderbird so I can not disable TLS support from Postfix main.cf In addition to I disabled TLS and I configured on either CRAM-MD5* and DIGEST-MD5* authentication and worked without any problem on squirrelmail. But this time,only (!) DIGEST-MD5 did not work on Thunderbird.CRAM-MD5 worked on Thunderbird. If i use DIGEST-MD5 mechanism,Thunderbird print error "Your Server doesnt support security authentication...." Interesting !! I can use DIGEST-MD5 mechanism and login IMAP and SMTP server with Evolution without problem. This is Thunderbird bug ? or DIGEST-MD5 mechanism could not been sensed by Thunderbird ? anybody have an idea(s) ? * I read and benefit from http://wiki.dovecot.org/Authentication/PasswordSchemes and http://wiki.dovecot.org/Authentication/Mechanisms sources web address. Iyi calismalar.Basarilar... Semih Gokalp Istanbul/Turkiye
