* In addition to language specific custom welcome messages (when creating a new mail account) this patch will
allow to have a welcome message template for each domain.

* To add a domain specific welcome message, place a file at /usr/local/ispconfig/server/conf-custom/mail/
and name it according the domain, like welcome_email_example.com.txt

* i.e. /usr/local/ispconfig/server/conf-custom/mail/welcome_email_example.com.txt

will be used if a mailbox for example.com is created.

fixed db.quota stats



See merge request !262

Master



See merge request !261

This reverts commit 9d3f2bbc.

This reverts commit aab7e05b.

some more filter_var for ipv4 / ipv6



See merge request !260

use filter_var instead of regex for ip-addresses



See merge request !259

Feature merge



See merge request !256