I used qmail’s per-user wildcard system. Using this, I can do user dash something at host dot com. For example, [EMAIL PROTECTED]
I would like to continue to once I move to vpopmail. This would have to be supported vdelivermail, I suppose, since the /home/vpopmail/domains/domain/.qmail-default file catches all mail for handling by vdelivermail.
I am writing a little hack for myself to rewrite the messages to have a non-wildcard name and add an extra header for the original to that will be called before vdelivermail.