smtp:~# apache2 -S
VirtualHost configuration:
wildcard NameVirtualHosts and _default_ servers:
*:*                    mail.snt-fi.it (/etc/apache2/sites-enabled/mail:1)
*:*                    pbx.snt-fi.it (/etc/apache2/sites-enabled/pbx:1)
*:*                    smtp.snt-fi.it (/etc/apache2/sites-enabled/smtp:1)
*:*                    www.snt-fi.it (/etc/apache2/sites-enabled/snt-fi:1)
*:*                    www.sntinformatica.it (/etc/apache2/sites-enabled/sntinformatica:1)
*:*                    spam.snt-fi.it (/etc/apache2/sites-enabled/spam:1)
*:*                    www2.snt-fi.it (/etc/apache2/sites-enabled/www2:1)
Syntax OK