SMTP's criticality is usually in availability, not performance (nobody notices 0.25 vs 1sec delay). IMHO you should stick with seconds, but tweak max check attempts, make sure you have load balanced SMTP, check each node, check end-end mail, etc.
In saying that, even check_tcp uses seconds for warning/critical thresholds. So if you want finer, you'd need to write a custom plugin :) -----Original Message----- From: Help [mailto:help-bounces+gareth.fletcher=onenet.co...@monitoring-plugins.org] On Behalf Of Lani Lim Sent: Tuesday, February 3, 2015 10:37 AM To: help@monitoring-plugins.org Subject: check_smtp Hi there, I was just wondering on why this plugin can not accept decimal points -bash-4.1$ /usr/lib64/nagios/plugins/check_smtp -p 25 -w 0.250000 -c 0.500000 check_smtp: Warning time must be a positive integer SMTP is a critical service for us so, performance should be generally fast, is this still an existing issue? Regards, Lani Lim Middleware Support Specialist Interac Association │ Acxsys Corporation t 416.869.5073 e l...@interac.ca<mailto:l...@interac.ca> interac.ca<http://interac.ca> INTERAC. Be in the Black™ This message and any attachments are confidential and may contain privileged information intended only for the person(s) named above. If you are not the intended recipient or you have otherwise received this message in error, please notify us by reply email and permanently delete the message and any attachments immediately. Any use, retransmission, dissemination, and/or copying of this information by anyone other than the intended recipient(s) is strictly prohibited.
