Eric Katherman wrote:
>
> Can somebody explain why some mail servers will kick a message back with
> the "Sender Must Resolve" error but other servers (which I know for sure
> in the past have done the same thing) accept the message. The server
> that is listed as the origin is in both of my dns servers. Just
> wondering if somebody has had this problem before.
>
> Thanks
>
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Check the reverse ARPA tables. Does the IP resolve to a name? Been
there . . .
George
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