Re: [cobalt-users] Sendmail relaying denied error

[Larry Smith <lesmith@xxxxxxxxx>]

INRE RE: [cobalt-users] Sendmail relaying denied error:
> >For one thing none of your IP seem to have "reverse" DNS.
> >
> >mail.arthur-lerner.com relates to 208.144.236.201, but
> >208.144.236.201 does not... (and neither does 208.144.236.130).
> >
> >I just sent a test email to the address in your message
> >(elmert@xxxxxxxxxxxxxxxxx) and it was at least delivered to IP
> >208.144.236.201.  Be interested to see if you actually get it.
>
> It works now because I deleted the site and re-created it.  But why
> would I have to do this for this domain.  All the other domains work
> fine.  Why do I need to have "reverse" DNS setup.  When someone sends an
> email to this domain it should query the remote DNS hosting's nameserver
> then see that the MX record is pointing to 208.144.236.201 and then the
> mail server should be able to route it to a user from that domain.

Elmer,

  You "need" reverse DNS since about  one-third or better of the current 
"internet" will not talk to your servers if they do not have reverse DNS 
(since the majority of spammers come in from machines/servers without reverse 
DNS).

> Relaying denied. IP name lookup failed [208.144.236.130]

Plus you "need" reverse DNS since your own server said so (see line above).

Do not have a 550 so cannot help further than that...

-- 
Larry Smith
SysAd ECSIS.NET
sysad@xxxxxxxxx