All DNS services are functioning properly at this time.
XO Communications, one of our backbone providers is having some DNS related issues which are causing reverse IP lookups to fail, some mail servers will not accept a connection without a reverse ptr record.
They are working on the issue now.
Scheduled maintainance:
Date: 1/12/2013
Time: 1AM CST
Estimated Downtime: 15 minutes
Effects Service Areas: MPLS, MN
Effects Service: Colocation, Dedicated Services, VPS, Hosting & Email