Author: Marc Perkel Date: To: Artem S. Tashkinov CC: exim-users Subject: Re: [exim] Ultimate spam defense - check for the sender MX record
Artem S. Tashkinov wrote: > Hello,
>
> I would like to increase a spam defense of our server by checking if a
> sender really represents an MX server of his/her organization. So if a
> certain PC is trying to send me an e-mail from user@??? then we
> will check if this person's IP address is within MX servers of
> domain.com, otherwise we'll refuse to accept the mail.
>
> Is it feasible? How can I achieve this?
>
> With respect and happy holidays
>
> Artem
>
>
I'm not sure that's a good plan because I send email from a different
server than I receive email on. I think that's actually common. Unless
I'm not understanding what you're saying.
