[CentOS] Sendmail, mailertable and DNS weirdness.

[Bart Schaefer]

On 6/21/06, Will McDonald <wmcdonald at gmail.com> wrote:
>
> I thought mailertable entries bypassed DNS?

Are you sure there's not some other DNS-based check involved, such as
(not that it would be this specific one) the
sender-domain-must-resolve check for spam prevention?  Just because
sendmail doesn't use DNS to reach the destination MTA doesn't mean it
isn't attempting to validate the message via DNS lookups.