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Question SSL3_GET_SERVER_CERTIFICATE

J

jadui

New Pleskian
Hi,

My Plesk-server has a problem sending mail by PHP. The error in the error_log says:

Code: 
[Fri Jun 12 11:45:24 2020] [warn] [client 92.108.127.74] mod_fcgid: stderr: error:14090086:SSL routines:SSL3_GET_SERVER_CERTIFICATE:certificate verify failed in /var/www/vhosts/xyz.nl/httpdocs/wp-includes/class-smtp.php on line 368

At the 'SSL/TLS certificates' settings under 'tools&settings', I installed a Comodo certificate (see attached image). Sending secure mail works fine when I use a external mailclient like Thunderbird but sending mail (local) from WordPress websites (for example Easy SMTP plugin) are a problem.

It looks like the mailserver uses an other (default) certificate. But have no idea how to fix this.

Any suggestions for this?

Thanks
 

Attachments

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