On Monday, March 17, 2003 3:09 AM [GMT+0530=IST],
Jason Robertson <jason@???> wrote:
> Correct me if I am wrong, but if I remember my RFC's correctly doesn't
> all 5xx errors refer to a permanent error?
>
> Personally if I find a host that is blocked trying to connect to all
> my mail servers, they get both listed in the firewall rules, and are
> null routed.
5xx mostly demands that if you retry, do so later, *manually*. What it
does say is that the remote domain refuses to accept delivery of the
current message.
srs
