Quote:
Originally Posted by n5bb
The existing email standards allow anyone to use your domain/alias in the From field of their emails!
- There is currently no way to prevent any SMTP sending server from generating an email using any From address, including one at your personal domain.
|
There's nothing in the standards that requires a submission server to relay arbitrary content or allow spoofing of any address. It's a matter of policy and what the software allows.
It's convenient that FM allows people to send email from
third-party domains, but it shouldn't allow anyone to send using someone else's address that hosted at FM. If they do it makes a mockery of SPF and DMARC.
The likes of Google and Microsoft don't allow it, I would hope FM doesn't, but I've never tested it.