Yes, but this is a pain to administer. Do you have some nice tools for generating these addresses and putting them into effect in the back-end which underlies your domain, without having to whip out an SSH client, logging in to some server, editing files and re-starting services?<p>I have my own &quot;yourdomain.com&quot;.  I pay to keep it registered and keep a server running also. Most people don&#x27;t have this; their mail domain is &quot;gmail.com&quot; or whatever. Sure, a lot of problems could be solved if everyone just had their own domain!<p>Speaking of &quot;gmail.com&quot;; I&#x27;m surprised Google doesn&#x27;t just make this a feature of gmail. It would be fairly trivial for them to implement for the benefit of all gmail users.