Reverse DNS Scenario

Matus UHLAR - fantomas uhlar at
Thu May 15 08:44:01 UTC 2008

On 15.05.08 12:27, Sumit Kumar wrote:
> I have a mail server hosted in the Amazon ec2 environment. The mails are
> being rejected from few servers as the reverse lookup points to amazon
> hostname rather than my domain name.

either those servers suck (well, they admins probably) or there is different

mail servers often do reverse lookup on connectinng IP, and validate if the
resulting record points to the same IP. They should not check whether it is
in the same domain as you are trying to send mail from.

the error message could help, however it's off-topic in this list I think.

Matus UHLAR - fantomas, uhlar at ;
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