What if we assigned a bucket in the email address?
joe[spam]@paytimepayroll.com
I've been doing this for about a year. (Using
myaddr+domain@example.com, which is supported by many MTAs). It
turns out that it starts to be a pain to manage. Companies change
names, domains change. You start to have addresses registered at
sites where you aren't sure which token you used. Never mind that
you get the sites that don't let you type in a + in the address (or
like drugstore.com, which just made it impossible for me to access my
email account because they added that restriction *after* I had
registered--not to worry they said, they'll fix it in 3-5 weeks.).