Hi Chris! I just completed testing on our fixes for this and so far I haven't run into any scenarios that trigger a rate limit. I've tested having invalid DNS records but proper bindings, valid DNS records but missing bindings, hostnames that were valid at one point and aren't any longer, etc. Are there any specific scenarios you'd like to see tested on this fix?
Kyle Kerst
Lead Internal Network/System Administrator
SmarterTools Inc.
smartertools.com