DYN has resolved the incident, and have confirmed the resolution on our side.
Posted Oct 21, 2016 - 09:51 EDT
Update
For those who are having DNS errors connecting to appboy.com, as a workaround, you may wish to switch your DNS servers to point at Google's. Using 8.8.8.8 and 8.8.4.4 as your DNS servers bypasses the upstream DYN issue completely and will allow you to access any site that is down due to this issue.
Posted Oct 21, 2016 - 09:10 EDT
Update
Because this is an upstream DNS issue, depending on your local Internet Service Provider, you may have trouble connecting to appboy.com. If you see an error that looks like:
It appears there is an issue with some DNS root servers affecting some well known domain names. The reason for this is an attack on the DYN DNS servers: https://www.dynstatus.com/incidents/nlr4yrr162t8. Many websites rely on DYN, such as Twitter, GitHub, and Spotify, services which are all currently unavailable due to the incident.
While Appboy does not use DYN, many sites that we or our customers rely on use DYN. As such, this upstream issue is causing data processing to be delayed. We are investigating potential workarounds now.