iam trying to block certain authenticated user by email from sending via smtp via postfix.
ive configured this in my main.cf
authorized_submit_users = !/etc/postfix/nosend, static:all
and added both email and the virtual mapped user of the email to the nosend file and its not working
could it be because i have relay set to external smtp provider?
if yes, how do i solve this?
how do i block an email from sending email?
|OS type and version||Ubuntu 20.04.5 LTS|