We have been setting up Solarwinds Orion to monitor our Exchange servers to get a better handle on issues before they manifest themselves. Since the initial deployment I am observing the "Failed Submissions per Second" alert getting triggered multiple times per day, although no users are reporting any issues (for example emails sitting in the Outbox).
I see nothing particular in the Event Logs, but when running Performance Monitor on the server itself I am confirming that Orion is correct. According to their documentation, this number should be always 0 in a healthy environment. Microsoft Tech that I worked with said that he sees multiple failed submissions in his demo lab, and concluded that since no users see any real issues, we can "safely ignore those errors" which sounds like a very bad idea.
What is the general consensus here? I am looking currently at other performance counters, but I am not seeing possible resource issues, and I am also not seeing throttling kicking in as far as I can tell. Unless of course I am not looking at the right places :)