[CentOS] sendmail slow to response

Thu Jul 30 17:23:53 UTC 2009
nate <centos at linuxpowered.net>

fabian wrote:
> Dear All,
> I am sorry for the post here but really apprecite if someone could help me
> or advise.
>  actually i just could not subscribe to sendmail mailing list

Check your DNS settings, make sure the name server can resolve
your address both forward and reverse, that's often the cause
of this sort of delay.

Host file entries are typically not enough, if I remember right,
the system call sendmail(and postfix I think) uses somehow
bypasses the host file or something.