I'm not an expert, but I think the receiving domain's mail server is
checking to see whether your sending mail server has a legitimate MX
record.
This kind of check is an anti-spam measure, preventing the use of accepted
mail through open relays.
- Scott
On 3 Aug 2001, Kunju SKM wrote:
>Hi,
> I am getting an error message of this sort while sending mails with ".in" domain.Can anyone tell me what the problem might be.
>- Message has not been sent. Server reply - relaying to <mail@???> prohibited by administrator".
>Thanks in advance
>
>
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