· IMGate
A site that shows how to build and configure, using Open Source software (FreeBSD and postfix), relay-only mail hubs to add aggressive anti-spam defenses and increased reliabiilty and througput to Imail sites. Note that the IMGate approach is not dependent on Ipswitch Imail and so is applicable to any other brand of mail server.
Copywright agreement:
The relationship between the topic of DNS and BIND
and the images of a cricket and a locust are trademarks
of O'Reilly & Associates, Inc. Used with permission.
I guess one of the most screwed up areas of DNS is the reverse zone delegation. I'll explain that here. (darn, this site is getting bigger than I planned for!!)