Paul, thanks for your answer. Paul Lesniewski wrote >> B. Update SMTP Settings : localhost:25 > > Port 25? Yes. As you say, smtp settings are irreIevant to imap tls ones. Also, I see no problem with this port. In my smtp setup, tls is used for communications of a client with smtpd. Paul Lesniewski wrote > ... >> Printing out the contents of smtpd.cert confirms that >> CN=uranus.sai.msu.ru > > But is the CA available (to SM) and known? How do I check the availability of CA to SM? Known to whom? As I said, my certificate/key pair is self-signed and simple (without chains). The cert file is smtpd.cert, the key is smtpd.key. Paul Lesniewski wrote >> Adding these lines to squirrelmail's config_local.php >> >> $imap_stream_options = array( >> 'ssl' => array( >> 'cafile' => '/etc/postfix/smtpd.cert', > > That does not look like a CA cert path to me. Yes, the path is non-standart, this is a testing environment. Still should be not a problem since the path is provided in dovecot config. Paul Lesniewski wrote >> 'verify_peer' => false, >> 'verify_depth' => 1, >> ), >> ); >> >> does not change anything. > > Did you verify if those are being used in the code? No. I assumed that if including these lines was your recommendation to David, SM should use them. Paul Lesniewski wrote > The solution might > be as simple as using a 1.4.23-SVN snapshot from our downloads page. > I'd try that before anything else. I will. Although, honestly, I would prefer to use the SM package from the official repository. I have to implement it in several servers and managing all them manually is too much trouble... Thanks again for your comments, Igor -- View this message in context: http://squirrelmail.5843.n7.nabble.com/svn-14501-TLS-handshaking-SSL-accept-failed-error-alert-unknown-ca-SSL-alert-number-48-tp26087p26484.html Sent from the squirrelmail-users mailing list archive at Nabble.com. ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, SlashDot.org! http://sdm.link/slashdot ----- squirrelmail-users mailing list Posting guidelines: http://squirrelmail.org/postingguidelines List address: squirrelmail-users@xxxxxxxxxxxxxxxxxxxxx List archives: http://news.gmane.org/gmane.mail.squirrelmail.user List info (subscribe/unsubscribe/change options): https://lists.sourceforge.net/lists/listinfo/squirrelmail-users