Hi,
How do I ensure that all outgoing smtp e-mails have one of the configured local primary internet domains (or alternative one) in the senders address?
There must be a way to ensure that email relaying is not possible for any user. (especially smtp anonymous)
I already tried with Lotus Domino 6-8.5 but none of the configuration parameters does prevent an smtp e-mail with “some” senderdomain leaves the last domino server.
I know of “InetFrom” so every Lotus Notes Client can provide his own sender address.
I know of RFC 5321, which makes it even worse because its difficult the check emails on a firewall with an empty envelope sender.
I would be very happy to get a hint how to enforce a company email domain on every outbound email.
Best Regards
Stefan