Red Hat Bugzilla – Bug 337
"unqualified hostname unknown" and "unable to qualify my own domainname"
Last modified: 2008-05-01 11:37:48 EDT
I'm running RedHat 5.2, with libc-5.3.12-28.
I'm having problems with sendmail. I used /bin/mail to
try to send messages to "firstname.lastname@example.org".
Whenever sendmail processes the queue, it logs messages
Dec 7 20:06:05 orbit sendmail: My unqualified \
host name (orbit) unknown; sleeping for retry
Dec 7 20:07:05 orbit sendmail: unable to qualify \
my own domain name (orbit) -- using short name
I'm using the stock sendmail.cf. Other files that might
be of interest are:
/etc/nsswitch.conf: (changed lines ONLY)
hosts: files dns
I'm using PPP to connect to two ISPs (and plan to add a
third soon). They are "trytel.com" (my primary ISP) and
"wonder.ca". Because I'm connecting to two, I hesitate
to define either one in the $j macro in sendmail.cf
or to specify a smart mail host with DS.
How can I get sendmail to send mail?
I cannot really tell from the information that you provided, but the
IP address for orbit (0.0.0.0) is what is causing your problem. This
is not a valid IP address for a machine. You might want to check
with your ISP to verify that you are using a valid address for orbit.