domain blocking for DNS
Jason Crowe
jcrowe at cmuonline.net
Thu May 8 16:51:33 CDT 2003
I would say no. Just because most people have no control over their
reverse dns as it is in the hands of their ISP.
Hanasaki JiJi wrote:
> Adding a parallel thread to "domain blocking due to spam".
>
> Some of you might have noticed a msg sent to me via the list becuase the
> sender was being bounced when sent directly. I recently added a
> configuration to my mailserver to reject connections from sources that
> do not have forward/reverse DNS setup.
>
> This resulted in alot of rejections from ligitimate companies and
> induviduals! It was put into place becuase some spam seems to come from
> telnet sessions on an IP that has no DNS / ReverseDNS entry.
>
> Do you folks think it is reasonable to expect admins to have both DNS
> and ReverseDNS propperly configured? at least for their outgoing
> mailserver?
>
> Thanks
>
>
>
>
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