Qmail patch for using IP alias or Multiple NIC.

Enable to send mails using multiple Network Interface cards using qmail.
http://www.gadgetwiz.com/software/outgoingip.patch

By default of qmail setting, qmail try to send main IP address of the host. By using this patch, qmail will send mails from IP addresses which are written in qmail/control/outgoingip. May be the delimiter of outgoingip file is .