These days I have enabled SMTP-VRFY functionality in the LoneStar Network MTA service, so that I can create/remove mailboxes through Vmail and have them automatically recognized by the ASSP antispam filter
that is put to upfront protection to the service itself.
Up to now, manual intervention was required by means of editing a text file containing the list of acceptable mailbox addresses.
With this change, any box created through the management web interface will be dynamically recognized as enabled.
