Basic DNS: PTR records and why you careA PTR record is what lets someone do a "reverse" DNS lookup - that is, they have your IP address and want to know what your host/domain is. At any Unix/Linux command line, you can use "dig -x" to do a reverse lookup:
SpamCheetah Realizing the potential of a technology is key to success. You also have to be quick at realizing the potential of humans...then only you can employ good people and grow. The insight you get in learning various technologies will help you in a big way
Help - I'm on a blacklist You are getting bounced mail that says your email can't be delivered because you are on a blacklist. Almost always there will be instructions or a link in the bounce message that tells you what you need to do next. It's usually pretty simple. You follow the directions and get yourself removed, but a month or so later it happens again. You are unhappy, and if you are one of my Kerio Mailservercustomers, you might have sent me an email saying just how unhappy you are.