Jaroslaw Grzabel:
> But as I mention in the post sent a moment ago, the problem
> is that I'm afraid I will reject unknown hosts with valid PTR. I don't
> want to do this.
Wietse Venema wrote:
> See "man 5 postconf" for the difference between:
> reject_unknown_reverse_client_hostname
> reject_unknown_client_hostname
Jaroslaw Grzabel:
> Sorry Wietse, but you completely lost me. How does it regard to my
> problem ?
You wrote, in the quote above:
I'm afraid I will reject unknown hosts with valid PTR. I don't
want to do this.
And I was responding to that concern.
If you are concerned that you reject mail from hosts with valid PTR,
then I recommend that you choose between:
1) reject_unknown_reverse_client_hostname. As documented, this
will accept any reverse name, without checking whether it resolves
to to the client IP address.
and
2) reject_unknown_client_hostname. As documented, this requires
that the reverse hostname resolves to the client IP address.
Wietse
