Hi,
I am masquerading as mantraonline.com in sendmail.cf. My mail client is
configured to use mantraonline.com as the user domain. And I am able to
nslookup del1.mantraonline.com while online. I tried using alternate DNS
servers instead of Mantra's DNS server, but to no avail. sendmail still
complained with "Deferred: Name server: del1.mantraonline.com: host name
lookup failure". As a last ditch effort I replaced the smart relay host
del1.mantraonline.com with its IP address and the mail did leave my
machine. It seems that somehow sendmail is ignoring my /etc/hosts file
and is also unable to resolve the host name del1.mantraonline.com
through any of the nameservers I pointed my machine to. But there's
another catch now. Although sendmail did empty the mail queue with
DS202.56.230.1, those mails are yet to reach their destinations! Any
thoughts anyone?
Regards,
Manu.
"Ramasubramanian, Suresh" wrote:
>
> Better ~not~ to use DM, especially if you set the sender-domain in your
> mailer to a totally different account - you might get antirelay bounces.
> The mantra online problem is due to dynamic dns - sendmail ~has~ to do a
> manual lookup of the smtp server before sending mail through it.
>
> 'Doze users / users of mail clients like netscape which connect directly to
> the mantraonline smtp server instead of having the local sendmail use
> mantraonline as a smart relay host won't face this problem.
>
> I know an admin at Mantraonline, I'll enquire from him if there's any fix
> for this. [IMHO the best fix is to use vsnl's dns instead of mantraonline's
> dns]
>
> Suresh Ramasubramanian | [EMAIL PROTECTED]
>
> > -----Original Message-----
> > From: Kedar Patankar [SMTP:[EMAIL PROTECTED]]
> > Sent: Monday, April 03, 2000 4:28 PM
> > To: [EMAIL PROTECTED]
> > Subject: Re: [LIH] sendmail host name lookup failure
> >
> > Hi,
> >
> > Are you "masqurading" in your sendmail? What does the DM macro in
> > sendmail.cf say (look for ^DM in sendmail.cf)?? This relates to mails that
> > you send locally, directly to sendmail's output queue (w/o going to smtp
> > port on localhost).
> > For mails that you send to localhost/smtp port, how is your mail
> > client configured? In particular what is the "user domain" in pine (or
> > whatever the corrosponding config in your mail client) set to??
> > And yes, can you nslookup del1.mantraonline.com while you are
> > online?
> > I guess the mantraonline guys must have changed some DNS related
> > config on their side, which has resulted in broken sendmail on your side.
> > That is not a surprise, as I have seen several isp's with broken dns
> > setups, broken reverse lookups and so on.
> >
> > Regards,
> > Kedar.
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