Disable VRFY command in Postfix command #722
Some server scan on internet each mail server and try to detect the email adress. After the email adress is found some spam are send.
The result is by example this : https://forum.yunohost.org/t/usage-frauduleux-de-ma-boite-mail/7540/4
Block the VRFY command in Postfix wich give the possibility to do that on the server.
Tested and it work. But need to be tested more deeply. By example if it break something.
How to test
Enable the option