Overall great idea with PagerDuty though, especially if one's business relies (survives) on their website's/system's uptime. Reducing MTBF is often very hard, especially after a certain point, and reducing MTTR is therefore very important for improving availability.
The email addresses for alarms are editable; if you get spam to one of these addresses, you can change the address. We were also thinking of adding an option to obscure the email address by adding a uid to the end. An example would be [email protected].
We also offer regex-based filters on both the subject and the body, so you can configure an alarm to only trigger if a certain keyword appears in the message.
Granted, I'm thinking of monitoring systems on a much larger scale where even a single instance of spamming can keep the entire dev team up at night. I do not see this being a problem for the smaller targeted audience that you are going after that will initially only set up a handful of alarms.
The reply via SMS feature is excellent and something that I always want in any monitoring system.
I'm curious about the security around the email alerts, can anyone send to the specific [email protected] or can you add at least a 'FROM:' check?
You probably have this on your road-map, but if a ticketing/worklog system could be integrated with this, you could add an incredible amount of value for folks working on the problem in real time.