sendmail / dns issue?
 

Hi, I have a dedicated linux server (FC4) and have a bit of an issue. If I log onto the server and send an email from the command line using the 'mail' command the first email takes between 3-10 seconds to be processed and sent, if I then send another email to the same address it goes in less than 1 second. If I wait a while or log off and back on then send an email again I get the same sequence - first email very slow, further ones are fast to the same address.

Im not certain that this is actually a sendmail problem, I seem to get the exact same problem when running a traceroute?? The first trace usually runs painfully slow.

Does anyone have any idea what may be causing the problem?

Much appreciated, Grant

What's in your /etc/resolv.conf file for your DNS servers? And what about your default route or gateway? Can you ping these with any problems?