[CentOS] Sendmail - block mail based on recipient address?

On Mon, 25 Oct 2010, Sean Carolan wrote:

Maybe someone can help me sort this out. I want to block outbound mail from my network based upon the recipient address. Internal servers should still be allowed to send emails, but not to a few specific addresses. I've tried creating some rules in /etc/mail/access but to no avail. Is it possible to do this?

lefgifu with: sendmail access TO

http://www.feep.net/sendmail/tutorial/anti-spam/access_db.html

'The left hand side of each entry can optionally be prefixed with one of the tags To:, From:, or Connect:.'

so:

To:acme@prohibited.com REJECT

(untested, but just reading the manual)

-- Russ herrold