Gmail also supports you.r.nam.e@gmail.com (add random dots to the local-part). (Almost?) every system considers '.' a valid character. However, you need to kee

Gmail also supports you.r.nam.e@gmail.com (add random dots to the local-part). (Almost?) every system considers '.' a valid character. However, you need to keep track of which tagged address goes to what service, much like the case of a tag with random hex digits.