In Gmail, you can add arbitrary dots (.) to your email address and add filters based on it: f.o.o@gmail.com You can also append a plus-sign with arbitrary text on it: foo+asdfsdfaiugo@gmail.com Both will route mails to foo@gmail.com.

As said, you can add a filter to add a label to all mails to this address and skip inbox for them. That's what I do.