5:00 PM Pacific — Our monitoring is not currently detecting any impact of the network outages on the MAX Mail services, although reports are that the DDOS attack was an NTP reflection attack of over 400Gbps so it is likely that some routes across the Internet are experiencing packet loss. For those interested, here are a few posts on the attack:
http://www.securityweek.com/cloudflare-infrastructure-hit-400gbs-ntp-based-ddos-attack