Issue Couldn’t open secure TLS connection to SMTP via warning: TLS library problem

[taibro]

I couldn’t send email via desktop emal client or Horde or Roundcube. In Roundcube is error 220: error of authorization. From desktop – timeout, SMTP doesnt answer to desktop mail client and nothing written in the mail error log.

A few months it worked properly. Look like in happened after new year.

In my logs with self-signed SSL certificate:

success postfix/smtpd[25014]: connect from success.secretlab.work[127.0.0.1]
success postfix/smtpd[25014]: SSL_accept error from success.secretlab.work[127.0.0.1]: 0
success postfix/smtpd[25014]: warning: TLS library problem: error:14094418:SSL routines:SSL3_READ_BYTES:tlsv1 alert unknown ca:s3_pkt.c:1300:SSL alert number 48:
success postfix/smtpd[25014]: lost connection after STARTTLS from success.secretlab.work[127.0.0.1]
success postfix/smtpd[25014]: disconnect from success.secretlab.work[127.0.0.1]​

With Lets encrypt SSL certificate just 3 line:

success postfix/smtpd[25014]: connect from success.secretlab.work[127.0.0.1]
success postfix/smtpd[25014]: lost connection after STARTTLS from success.secretlab.work[127.0.0.1]
success postfix/smtpd[25014]: disconnect from success.secretlab.work[127.0.0.1]​

But Mailer daemon report with error:

Out: 454 4.7.0 TLS not available due to local problem​

I did try:
- to set other self-signet certificate for securing mail
- change postfix to qmail and back (qmail doesn’t work also)
- plesk repair mail
- comment the line at /postfix/main.cf #smtpd_tls_protocols = TLSv1 TLSv1.1 TLSv1.2

Main /postfix/main.cf: http://pastebin.com/7Dh3UMYX
/postfix/master.cf: http://pastebin.com/itKCsevD

I spent whole day and have no more ideas what happened and how to fix that.