[Mimedefang] dictionary attacks looking for a valid user

[Kevin A. McGrail]

I had too many issues with +'s not working with websites and some of my
email addresses being handled by a mixture of Linux and Exchange that I gave
up and abandoned it.

> Is that looking for custom recipient names that you've registered with? If
> so, have you tried plussed addresses? A lot of web forms stupidly reject
> the plus sign (I just took a site to task for it yesterday) but it
> eliminates the need to add another entry to your alias/virtusertable file.