I am experiencing strange issues with my alerting emails. Polling with ICMP only, I am using the built-in "Email me when NODE goes down" alert with the reset of "When NODE is equal to UP."
At first it seemed at random whether or not I would receive an up or down email for any node; However, after looking more closely at the alert timestamps that come with the emails, I noticed that every DOWN and UP email is being sent, but that occasionally they are just taking a few days to deliver.
That is why I thought that some weren't coming through. I would just get random DOWN or UP emails without the other.
Is there anyone here with previous experience with this issue, or a good idea on why this is happening so that I can get this corrected?
Thank you!