Hello,
one of my users are getting tons of NDR and ask me if there is anything i can do about it.
These emails are marked as spam and are being sent to the users mailbox spam folder.
<randomrecipient@randomdomain.com>: host <ip address> said: 503 5.0.0
REJECT: FROM and AUTHENTICATED SENDER are different From:
myuser@mydomain.com Auth: spammeraddress@spammerdomain.com (in reply to end of
DATA command)
Its obvious, some bot is using his email address in reply-to field. Is there something i can do about it on the Exchange side? Using EOP as antispam solution.
Im about to suggest to a user to create an outlook rule to delete these messages .. i dont really want to create transport rule just for this one user.
Thank you