I am pretty sure I have seen the answer to this but I have searched the archives, google, and my own archives (since I joined the list) and can't seem to find where I saw this mentioned before. I have notification commands such as: define command{ command_name host-notify-by-email command_line /usr/bin/printf "%b" "** Nagios **\n\nNotification Type: $NOTIFICATIONTYPE$\nHost: $HOSTNAME$\nState: $HOSTSTATE$\nAddress: $HOSTADDRESS$\nInfo: $HOSTOUTPUT$\n\nDate/Time: $LONGDATETIME$\n" | /usr/bin/mailx -s "Host $HOSTSTATE$ alert for $HOSTNAME$!" $CONTACTEMAIL$ } When I run: /usr/bin/printf "%b" "** Nagios **\n\nNotification Type" from the command line it appears correctly, with the \n inserting a line break, however when Nagios sends an alert I get the alert with no line breaks and an"nn" or "n" (depending on the break) where it should have been. I am stumped at the moment. I have been over the docs but only found the macros listing. I have a sneaking suspicion that it may have something to do with 2.9/2.10 upgrades but that didn't make much sense to me. I have tried escaping the breaks but the same thing happens as if there weren't any escapes there at all. Nagios 2.10 SLES: 9 patch level 3 Any help at all, even just the right google phrase for which to search, would really be appreciated! Best Regards, Mark L. Potter Systems Engineer Academy Sports & Outdoors 1800 N. Mason Rd Katy, Texas 77449 Office: 281-646-5857 Cell: 281-734-6965