Photon

I'm on v5.3.4. I encountered what you describe when I tried to use any smtp mail server for notifications other than default. The ISY began rebooting continually. With the default mail server the test button generates a test notification but no real notifications are sent ever. I've been on this version for a long time and only realized notifications aren't working when a leak sensor responding to a water leak failed to notify me. I then looked into all of the notification messages and created conditions for them to be sent and none did. I tried two different smtp servers. The test button would result in an error message that the mail server isn't responding. I left one setup and figured I would get back to trying to make this work later. That evening when programmed actions began I noticed the same things happening over and over. When I checked in the admin console the ISY was only up for about 2 min before it would reboot.

Adding my Thanks. To calm my panic if not home when an email arrives on my phone I added a line to the emails so I know if the water is shut off : Water Shutoff Valve Status Water Valve shutoff relay is: ${sys.node.XX XX XX 2.ST} On = Water valve is closed. Water to the house is shut off Since the leaks sensors have to be manually reset I added a line to the Leak repaired program to turn the water valve back on. ISY shuts off the water when a leak sensor reports wet. These programs keep me informed of leaks and sensor health. And when I reset a leak sensor after testing or an actual leak is repaired the water is turned back on.