## Dovecot
File : /etc/dovecot/dovecot.conf
Add :
ssl_protocols = !SSLv2 !SSLv3
and service dovecot restart
## Postfix
File: /etc/postfix/main.cf
Add :
smtpd_tls_mandatory_protocols=!SSLv2,!SSLv3
and service postfix restart
## Metronome
File : /etc/metronome/conf.d/DOMAIN.TLD.cfg.lua
Into ssl {}
options, add :
options = {"no_sslv2", "no_sslv3", "no_ticket", "no_compression"};
and service metronome restart