I am using the IMAP Round Trip sensor to monitor our outbound email sending. I have 2 sensors set up, one using GMail and one using AOL. Currently if either one is in error I get notified even if the other is working. AOL is flaky at times and is usually the one erroring out, but GMail is not 100% accurate either, hence using both sensors to monitor outbound.
I would like to set up a Sensor Factory sensor that monitors both IMAP sensors and only alerts me if both of them are in error. I have tried adding the downtime channels of each and checking if it's over 0 but I never get any data on my sensor.
Is there any way to have an alert trigger only if two sensors are in error?