On Wed, 19 Nov 1997 mgriffit@??? wrote:
> I am looking for a solution to allow mail to Postmaster (or any designated
> users) from anywhere irrespective of whether the sending site(s) are included
> in any implemented anti-spam filters.
> I have quickly re-scanned the manual/archives but to no avail. There is
> the 'recipients_reject_except' option but does this only apply to the
> '*_recipients' type options or to all filters (sender_net_reject and
> sender_host_reject).
Clearly, if you are basing your requirement on the recipient, then the
only type of blocking you should implement is by recipient. If you set,
for example,
sender_host_reject
then matching hosts get their calls dropped as soon as they connect to
you, long before they get a chance to say "this is for postmaster".
If you want to do checking by recipient only, then you should set
receiver_verify, and arrange your directors and routers (by means of the
verify and verify_only options) such that they allow only the recipients
you want.
If you also want to do some host checking as well, then you must indeed
use the *_recipients form of checking so that the exception list can be
used.
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