On Tue, 9 Feb 1999, Kevin P. Fleming wrote:
> I've got a vendor who sends me email, which is bounced because the forward
> and reverse lookups for his outbound SMTP server don't match... However,
> there are _three_ PTR records for his server's IP address (which is a
> no-no), and two of them work, one of them doesn't. I've contacted them and
> told them this needs to be corrected, but should Exim do anything
> differently in this case? Or does it even get enough information back from
> gethostbyaddr() to be able to do anything different?
The interface to gethostbyaddr() is capable of returning only a single
host name.
On Wed, 10 Feb 1999, Piete Brooks wrote:
> > However, there are _three_ PTR records for his server's IP address
>
> As I remember, this is technically correct, but not the normal practice ...
Indeed. The reason it is not normal practice is that various bits of
software cannot cope, gethostbyaddr() being one of them.
--
Philip Hazel University of Cambridge Computing Service,
ph10@??? Cambridge, England. Phone: +44 1223 334714.
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