sending mail from sendmail is very slow!!!!

[m.roth at 5-cent.us]

Jonathan Billings wrote:
> On Sun, Jul 29, 2012 at 1:16 PM, raj sourabh <rajsourabh1 at gmail.com>
> wrote:
>
>> I am using a sendmail for sending alerts and notification from RHEL
>> server 5.5. But the sendmail process is very slow and it takes around 2
minutes
>> to complete.
>>
>> Is there any way i can make it faster?

> First, I hope you're running with the latest updates, and not really RHEL
> 5.5.
>
> It's not really possible to know exactly what is wrong from these somewhat
> vague details, but I suggest looking at your DNS settings, particularly
> for the hosts running sendmail.  As a quick guess: Sendmail is very picky
> about DNS and if you are using any host names that don't resolve, it can
take
> longer than it would otherwise.

If it's still that way, I'll second that - about 5 years ago, I had
someone sending out email via a mailing list, and it was seriously
ridiculous - many, many minutes, because of screwy recipient addresses.

       mark