I've been doing something with dash as the recipient delimiter since the late 1990s and it's been great. But that became a pain when I wanted to switch to hoste

I've been doing something with dash as the recipient delimiter since the late 1990s and it's been great. But that became a pain when I wanted to switch to hosted email, as many providers wouldn't support it. I eventually ended up at Fastmail, as they let you build custom Sieve scripts that can do this kind of remapping without having to run your own mail server.