<html><body> Thanks to all for the help. I have performed the suggested changes, in case of other anomalies I will make you know. Paolo Stefano Riccadonna IT Specialist On 2/27/07, <a href="mailto:paolo.riccadonna@sistinf.it">paolo.riccadonna@sistinf.it</a> <<a href="mailto:paolo.riccadonna@sistinf.it">paolo.riccadonna@sistinf.it </a>> wrote: <ul> <ul>Hello all. We have Nagios 1.3 installed on Debian 3.1 Last night it has notified an "Host Down error" for more than two hours but it did not send some email notification (the timeperiod of notification is 24x7). It's the first time that we have this anomalous. Has Anyone experienced this problem before? Could be a refresh problem? Does a plugin exist that corrects it? Thanks a lot for your attention. Paolo Stefano Riccadonna IT Specialist </ul> </ul> </body></html>