Scan for a virus before that scan for an .exe attachment file
I'm running a mailserver based of Perferc Debian ISPConfig server. (version 22.214.171.124).
I've notice that everytime that somebody try to send a virus to an email, the system is doing this steps:
1)checking if the email address is valid
2)checking if the attachment is an .exe file, in this case send a bounced email
3)checking if the attachment is a virus, in this case it discards.
I would like basically to swap the points 2 and 3... so that if somebody try to send an .exe file that is a virus, it will not receive a bounced email...
How can I do it?