That's what we do, using the Reply-to header, in case people hit reply. But the From header (which is what users see) still has to be one of ours. This is a re

That's what we do, using the Reply-to header, in case people hit reply. But the From header (which is what users see) still has to be one of ours. This is a requirement of SendGrid, AWS SES, etc., and it'd look pretty spammy otherwise. Also, I just checked the latest notification I received from Facebook (someone posted on my wall) and its headers were From: "Facebook" <notifications+{code}@facebookmail.com> Reply-to: noreply <noreply@facebookmail.com>