I am using R6, I would like to restrict a group of users sending internet mail. I created a group,
"Deny External Email" group, and in SMTP Outbound Controls, under "Deny messages from the
following Notes addresses to be sent to the internet", I enter the group name.
When the users from the group send internet mail, for ex, firstname.lastname@example.org , they will get
the Mail Router error, this is what I want, and means the setting works.
But, if the users send with address, for ex, email@example.com@DOMAINXYZ , and in this case, DOMAINXYZ is another domain in our company, the mail will be route through the server from this DOMAINXYZ and deliver to firstname.lastname@example.org .
How to restrict the mail from route through another domain ? Thank you.