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

R P Herrold herrold at owlriver.com
Mon Oct 25 10:52:41 EDT 2010


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 at prohibited.com		REJECT

(untested, but just reading the manual)

-- Russ herrold


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