A/UX: "deferred hostname lookup failure"


Article Change History
----------------------
08/31/92 - REVIEWED
* For technical accuracy.


Often, I get the message in the sendmail queue

deferred hostname lookup failure

when sending mail from a Macintosh to a Sun. Sending from the Sun to a
Macintosh always works. The Sun can receive mail from other machines over the
same net.

A nameserver on the network that doesn't have the Macintosh II in its hosts
file can cause this problem.


Published Date: Feb 18, 2012