Till, Falko, this is a great howto!!! very very very usefull!
I have an ISPConfig multiserver environment, is it possible to create a certificate for a mail server (postfix, courier) and with it give access to every vdomain that access the server using its own url??
for example, people can access mail server thgouth imap/pop3/smtp.virtualdomain.com.ar
I think I should generate a certificate for the server mail1.myenterprisedomain.com.ar but I don't know if the certificate could work this way!