Hi,
I've upgraded Plesk to Onyx version.
Since this upgrade, webmail.domain.tld show me a 500 Internal Error.
In /var/log/apache2/error.log, I can see :
[Thu Jul 13 08:46:50.482791 2017] [fcgid:warn] [pid 13437] (104)Connection reset by peer: [client X.X.X.X:44737] mod_fcgid: error reading...