On Mon, Aug 08, 2011 at 01:46:08PM -0500, /dev/rob0 wrote:
> On Mon, Aug 08, 2011 at 12:29:38PM -0600, Stephen Atkins wrote:
> > I would like to block absolutely everything to or from this
> > domain no matter what. I found a couple of examples but they
> > don't seem to want to work for me.
>
> That's a different, relatively trivial matter.
>
> First, explain what "mail from a certain domain" means. Do you mean
> the easily and commonly forged sender address? If so, you want a
> check_sender_access lookup:
> example.com reject
> This is fine if you are absolutely certain that no legitimate mail
> would ever have a sen...@example.com address.
>
> If OTOH you are talking about the client or HELO hostname, there
> would be different lookup types needed. And as to why the examples
> are not working, not much we can do about that until you read:
> http://www.postfix.org/DEBUG_README.html#mail
That answered the "from a certain domain" part but neglected the case
of "to a certain domain". That would be a check_recipient_access
lookup, if the recipient address is what is meant. I also forgot the
link to SMTPD_ACCESS_README, but Jeroen gave that.
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