Postfix TLS library problem

[spanish]

Hello,

I have installed OpenMeetings in my OpenVZ ISPConfig machine (server1.domain.org, 11.22.33.44). I have configured the SMTP parameters of OpenMeetings with my ISPConfig mail address (mail@domain.org).

When OpenMeetings tries send an email, I get this error of Postfix:

Jun 30 02:55:59 servidor postfix/smtpd[10397]: connect from server1.domain.org[11.22.33.44]
Jun 30 02:55:59 servidor postfix/smtpd[10397]: SSL_accept error from server1.domain.org[11.22.33.44]: 0
Jun 30 02:55:59 servidor postfix/smtpd[10397]: warning: TLS library problem: 10397:error:14094416:SSL routines:SSL3_READ_BYTES:sslv3 alert certificate unknown:s3_pkt.c:1053:SSL alert number 46:
Jun 30 02:55:59 servidor postfix/smtpd[10397]: lost connection after STARTTLS from server1.domain.org[11.22.33.44]
Jun 30 02:55:59 servidor postfix/smtpd[10397]: disconnect from server1.domain.org[11.22.33.44]

# telnet localhost 25

Trying 127.0.0.1...
Connected to localhost.localdomain.
Escape character is '^]'.
220 Hello friend

ehlo localhost

250-server1.domain.org
250-PIPELINING
250-SIZE 10240000
250-VRFY
250-ETRN
250-STARTTLS
250-AUTH LOGIN PLAIN
250-AUTH=LOGIN PLAIN
250-ENHANCEDSTATUSCODES
250-8BITMIME
250 DSN

# vi /etc/postfix/main.cf

...
# TLS parameters
smtpd_tls_cert_file = /etc/postfix/smtpd.cert
smtpd_tls_key_file = /etc/postfix/smtpd.key
smtpd_use_tls = yes
smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache
smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache
...

Any idea?

Thanks,

Manuel

[falko]

Did you see any errors when you created the SSL certificate?

[spanish]

No, everything went well.

[spanish]

I have configured mail@domain.org in Thunderbird with SMTP = TLS and I can send mails without problem.

[Mark_NL]

Jun 30 02:55:59 servidor postfix/smtpd[10397]: SSL_accept error from server1.domain.org[11.22.33.44]: 0

tells me you want to create an SSL connection, before even sending STARTTLS, so you configured the wrong secure connection in your mail client.

[spanish]

Thanks, Mark, I will try solve this and inform here. Greetings, Manuel