Tag: Dovecot

postfix/submission/smtpd certificate expired alert number 45

I tried to configure Laravel mail client with secure connection via TLS to my email server but in email client I got: Unable to connect with STARTTLS: stream_socket_enable_crypto(): SSL operation failed with code 1. OpenSSL Error messages: error:14090086:SSL routines:ssl3_get_server_certificate:certificate verify failed. At the same time on my email server in /var/log/maillog I observed the following: …

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Roundcube STARTTLS error SSL alert number 45

I’m working with a Postfix/Dovecot/Roundcube setup, aiming for a virtual user mail system that can send mail through the internet. Everything seems to work well; Dovecote shows no problems, I can telnet into all of my ports; however, whenever I try to send mail through Roundcube I get the error:

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