When the internet doesn’t see an update to your zonefile

By , April 22, 2010

Every once in awhile we see a situation where somebody changes the IP address one of their hostname (A records) points at and the rest of the world still sees the old address.

Common causes of this include:

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What to do if your domain name or mailserver IP is listed in a DNS blacklist somewhere

By , April 22, 2010

You find yourself in a situation where email you send from your domain is being rejected by some remote mail servers with a message that your domain is listed in a DNS based blacklist.

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How do I point “www.domain.com” at “domain.com” or vice-versa?

By , April 22, 2010

You may have your webserver setup for either www.example.com or just example.com and you want it to work either way, whether people type in the “www” part of your domain or not.

(By way of info, “www” is purely a convention, it isn’t in itself necessary to “make your domain work” over the web).

There are a couple ways to do this:

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Somebody is sending spam with my domain name in it!

By , April 22, 2010

Sooner or later, this happens to almost everybody: you own a domain name and suddenly you start getting weird email bounce messages and you realize the unthinkable: somebody has sent out an email spam with your domain in the message “From” headers! What to do?

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Somebody is emailing me an offer to buy my domain, what do I do?

By , April 22, 2010

The domain aftermarket is very active. Many registrants registered quality names many years ago and never actually did anything with them (not even by monetizing them via domain parking).

These domains attract all kinds of players out of the woodwork. Including:

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