Comment 3 for bug 183372

Note that there's actually multiple qrunner processes that must run in order to deliver mail. It would not be hard to add something to the XMLRPC qrunner to write the tag every so often (I think there's even a debug switch that is more chatty to the log). Or you could of course write a small qrunner that just woke up periodically and Did Something. The health of one qrunner does not necessarily imply the health of the entire system though.