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Full Discussion: sendmail : 550 host unknown
Top Forums UNIX for Advanced & Expert Users sendmail : 550 host unknown Post 9966 by Neo on Tuesday 6th of November 2001 04:28:22 AM
Old 11-06-2001
Interesting problem. Agree, your DNS resolver appears be just fine. Can you try this?

/usr/lib/sendmail -v unixdotcom@hushmail.com < /etc/services

(or some other file and/or valid email address of your choice)

Please post the output of the sendmail -v verbose command. Thanks.
 

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rt-email-dashboards(8)					     Request Tracker Reference					    rt-email-dashboards(8)

NAME
rt-email-dashboards - Send email dashboards SYNOPSIS
rt-email-dashboards [options] DESCRIPTION
This tool will send users email based on how they have subscribed to dashboards. A dashboard is a set of saved searches, the subscription controls how often that dashboard is sent and how it's displayed. Each subscription has an hour, and possibly day of week or day of month. These are taken to be in the user's timezone if available, UTC otherwise. SETUP
You'll need to have cron run this script every hour. Here's an example crontab entry to do this. 0 * * * * /usr/bin/perl /opt/rt4/local/sbin/rt-email-dashboards This will run the script every hour on the hour. This may need some further tweaking to be run as the correct user. OPTIONS
This tool supports a few options. Most are for debugging. -h --help Display this documentation --dryrun Figure out which dashboards would be sent, but don't actually generate or email any of them --time SECONDS Instead of using the current time to figure out which dashboards should be sent, use SECONDS (usually since midnight Jan 1st, 1970, so 1192216018 would be Oct 12 19:06:58 GMT 2007). --epoch SECONDS Back-compat for --time SECONDS. --all Ignore subscription frequency when considering each dashboard (should only be used with --dryrun for testing and debugging) perl v5.14.2 2013-05-22 rt-email-dashboards(8)
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