Unable to connect to Plesk mail server via an email client: TLS handshaking: SSL_accept() failed

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    Jan Bludau

    i've now a days a bug with dovecot: 

    "Jul 23 02:16:24 mail dovecot[10590]: imap-login: Disconnected (no auth attempts in 0 secs): user=<>, rip=77.179.108.18, lip=62.138.7.233, TLS handshaking: SSL_accept() failed: error:14094412:SSL routines:ssl3_read_bytes:sslv3 alert bad certificate: SSL alert number 42, session=<kQhQxBCrYt5Ns2wS>"

    happend from alone after one update, it's the newest Version of onyx.

    TLS handshaking: SSL_accept() failed: error:14094412:SSL routines:ssl3_read_bytes:sslv3 alert bad certificate: SSL alert number 42

    can't renew the certificat under servertool -> SSL (Let's encrypt).

     
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    Anton Maslov

    Hello Jan, error "SSL alert number 42" means that your certificate is not correct (might be expired, might be does not match server name you use in mail client: e.g. in mail client it is example.com and you have certificate for domain.com).  You need to issue a new one or renew it under Tool & Settings > SSL/TLS support > Mail server

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    Jan Bludau

    "You need to issue a new one or renew it under Tool & Settings > SSL/TLS support > Mail server"

    i had done this with no success. the domain name ist mail.bludau-media.de for the dns PTR.

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    Leonid Gukhman

    @Jan Bludau

    Hi, according to https://ssl-tools.net/mailservers/, the certificate for the mail server is issued for bludau-media.de, whereas it is expected to be exactly for mail.bludau-media.de. The certificate issued for 'mail.bludau-media.de' should be selected under Tool & Settings > SSL/TLS support > Mail server.

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