4 ms·

If you send me a name+whatever@gmail.com then I automatically know what your real address is and can strip the +whatever and now you're stuck. With aliases, I

If you send me a name+whatever@gmail.com then I automatically know what your real address is and can strip the +whatever and now you're stuck. With aliases, I can drop the alias and you can not easily guess my real email address. Just depends on what you want, or what you use it for.

Semaphor 8y ago
Not to mention that FM also allows plus addressing as well as a different style name@whatever.domain.com
- funkaster 8y ago
  how would that work ? don't you need to set up the MX records for that particular subdomain?
  - fredsted 8y ago
    you could set up a wildcard CNAME
    - jlgaddis 8y ago
      Please don't. Per RFC, an MX RR cannot point to a CNAME.
      - fredsted 8y ago
        That's not what I'm suggesting though.
  - danieldk 8y ago
    You set up wildcard MX records, such as for *.yourdomain.tld. With Fastmail sets this up automatically if you let them handle your DNS, though you can (obviously) disable it.
chipperyman573 8y ago
This is true, but most spam email is automated. You're still correct though, your solution is more secure (and also what I use). It's always possible the form you submit automatically strips the +whatever from your email silently. I believe facebook does this (at least when checking to see if the email you're using has already been registered).