Mail Protection: SMTP relay by domain
Would be extremely beneficial to incorporate a list of allowed domain names to relay for authenticated users.
this would help prevent internal espionage or internal theft. imo. Example. If internally i send a spoofed mail to a the shipping department as a technical Lead, to have equipment shipped externally. only the real authenticated user would be able to send mail as the real user.
No what im suggesting is that users can only send mail as themselves once authenticated or as email addresses they are assigned to. That way they can not spoof addresses internally. to people internal or external - Second how the heck did you get creating a mail server from my post. is this just "oh create a mailserver spam dismissal?"
Bob Alfson commented
Jonathan, aren't you suggesting that the SMTP Proxy become a mailserver?