spam being sent using my domain

[Derek Davis]

On 1/19/07, Shane Hathaway <shane at hathawaymix.org> wrote:
> Derek Davis wrote:
> > I own the domain name dnadavis.net.  I set up a catch all mx entry, so
> > that all email that I don't specifically account for gets forwarded to
> > my gmail address.  This way, I can make up email addresses on the
> > spot, which I like doing.
>
> Perhaps a better way to do this is to use address extensions.  For
> example, if you have 'me at example.com', you can also receive mail as
> 'me+oldnavy at example.com' and 'me+blog at example.com'.  Postfix supports
> this feature but doesn't enable it by default.  It's configured using
> 'recipient_delimiter' in main.cf.  You might choose '.' or '-' as the
> delimiter so that it isn't obvious to spammers that you're using the
> feature.
>
> Shane

Thanks everyone for all the great answers.  Very helpful.