sendmail excesive DNS timeout

Trying to debug a obscure timeout issue related to registered domains
but without responsible DNS servers, I just compiled sendmail 8.14.2,
under Solaris 10, with default configuration:

$ time obj.SunOS.5.10.i86pc/sendmail/sendmail -bv
pepe@robertgraham.compepe@robertgraham.com... deliverable: mailer
esmtp, host robertgraham.com, user pepe@robertgraham.com

real 1m45.082s
user 0m0.008s
sys 0m0.009s

An almost two minutes timeout seems a bit excesive. I tried to tune my
"sendmail.cf" to configure dns timeouts, but it doesn't work.

What can I do?. This issue is impacting my users hard from time to
time.

Re: sendmail excesive DNS timeout

On 21 nov, 22:49, jcea wrote:
> Trying to debug a obscure timeout issue related to registered domains
> but without responsible DNS servers, I just compiled sendmail 8.14.2,
> under Solaris 10, with default configuration:
>
> $ time obj.SunOS.5.10.i86pc/sendmail/sendmail -bv
> p...@robertgraham.compepe@robertgraham.com... deliverable: mailer
> esmtp, host robertgraham.com, user p...@robertgraham.com
>
> real 1m45.082s
> user 0m0.008s
> sys 0m0.009s
>
> An almost two minutes timeout seems a bit excesive. I tried to tune my
> "sendmail.cf" to configure dns timeouts, but it doesn't work.
>
> What can I do?. This issue is impacting my users hard from time to
> time.

in /etc/resolv.conf you could try :
options timeout:3
options rotate


nameserver 11.22.33.44
nameserver 11.22.33.45
nameserver 12.12.12.33
etc ..
That will reduce the time the resolver wait for DNS
SarDameAveline