Alerting does not work

[netsigi]

Hi,

running Alix 4.5f IROX-Pro
I had lost some sensors last times. I had never a Mail about this. The mail-test (authenticated) works well. Also no appearance in the logs.

[YJB]

Please do keep in mind that meteohub waits patiently approx 6 hours before alerting. Then you will get an email with, for example, the following content:
Sensor "th1 " failed

[netsigi]

In 2 cases it was more than 24h!

BTW, why wait 6 hours? I think more in terms of 15min. Why not adjustable? I think i must solve this with nagios...