sendmail and unqualified hostname
Im learning a new os and sendmail has been lamenting during system start-up. I get a "unqualified hostname" during the boot process. I dont actually use the sendmail program but its my understanding that cron and other system notifications must be forwarded somewhere and one must replace sendmail with another mail program to prevent a plethora of undelivered mail.
why is sendmail displeased with my hostname? My host name is of course in /etc/hosts but i had never messed with any sendmail configuration files. perhaps that is the nature of the problem. What is wrong with sendamil? How can i prove to sendmail that my hostame is infact valid.