You might also make sure that there is an entry in /etc/hosts, so the system can resolve its own name. If you cannot boot the system, try booting into single user mode by adding "single init=/bin/bash" without the quotes, to the end of your kernel grub entry and then booting it. More information can be found here:
<br><br><a href="http://www.systura.com/linux/singlegrub.php">http://www.systura.com/linux/singlegrub.php</a><br><br>Sendmail will fail or take a long time to come up if it cannot resolve itself. <br><br>Josh<br><br>