Friday, July 20, 2007

Sendmail error:unqualified host name (localhost) unknown; sleeping for retry

Solution:Make sure the host's names (including localhost) are
defined in /etc/hosts, and that /etc/hosts is being used in
name resolution.

Possible Fixes:
The solution will fix in shortening waiting time execution
of mailq,sendmail -q, and restarting the service of sendmail.

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