4 ms·

I think most MTAs support +. Isn't that part of the e-mail standard?

• jperras 7y ago
  It is, but many services will (incorrectly) prevent an address with a `+` in it from ever making it to their database/whatever. So the fact that the MTA will route it is irrelevant if it never makes it to the MTA in the first place.
  • deathanatos 7y ago
    > It is [part of the standard] + as a magic character to effect routing isn't part of the standard. Mail servers are free to route addresses to mailboxes in whatever manner they see fit. That + can appear as a character in an address is part of the standard, just not the behavior of it; a server that treats a+1@ and a+2@ as distinct emails is conforming, and from a sending side, you cannot know if a+1@ and a+2@ will end up in the same mailbox. (But you're absolutely right that too many sites fail to parse email addresses. Or rather, they over-parse.)
• FireBeyond 7y ago
  The MTAs do. Many a website won't allow you to use this syntax for a user registration.