I've been doing the wildcard/per-site email thing for a few years now, unfortunately these spam emails are coming to a more generic address that I used to use f

I've been doing the wildcard/per-site email thing for a few years now, unfortunately these spam emails are coming to a more generic address that I used to use for everything that I can't quite ditch yet. Also regarding calendars, can you share that calendar with arbitrary people who don't have Fastmail accounts?