Tim Coleman wrote:
> On Fri, Feb 11, 2000 at 01:01:01AM +0530, Murthy Raju wrote:
> > Hi,
> >
> > My Sendmail seems to send DNS requests as soon as it
> receives any outbound
> > mail, even though I only send all outbound mail to my ISp's
> SMTP server,
> > which acts as a relay host. I connect every one hour or so
> for uploading
> > mail to my ISP's SMTP server.
> >
> > I just want to set up Diald in a way that it does not
> start dialing when
> > Sendmail sends such a request.
>
> How about configuring your ipmasq rules so that packets destined for
> the smtp server are blocked, but when diald brings up your connection
> that rule can be changed to accept those packets.
How about configuring sendmail to stop doing name resolution?
if you configure using m4 source then add
FEATURE(nocanonify)dnl
to your configuration, rebuild the sendmail.cf file and restart sendmail.
if you were using postfix you would use the
disable_dns_lookups = yes
option in your main.cf file.
This presumes your ISP has their smtp server configured to do all the name
checks.
Lourdes
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