[Mimedefang] Re: Net::DNS module for DNS lookups
Kelson Vibber
kelson at speed.net
Wed Jul 9 12:21:01 EDT 2003
Dave Shepherd <Dave.Shepherd at Vixel.com> wrote:
>If a message is From: friend at ibm.com then shouldn't it be arriving from
>some system at hostname.ibm.com ??
In the case of IBM, probably. In the case of friend at smallcompany.com, it's
more likely to be from a system at hostname.someisp.com.
Additionally, if someone sends work-related email from home, the server
they use may have nothing to do with the MX record at all.
>What the effects would be if I rejected email in these cases.
You'd block a whole lot of legitimate email.
Kelson Vibber
SpeedGate Communications <www.speed.net>
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