Update: Hardware failure, remediated with hot swap replacement. Queued sends should begin to resolve over the next hour. Services are being restored.
As of 1:06 PM EST we began experiencing a service outage. Our engineers are currently working to restore all services.
Update: The router has been replaced and Campaigns are getting pushed out. You may see some delay on the Statistics as they are getting caught up.
As of 9:48 a.m. EST a router failed causing our servers to be cut off from the internet. We are in the process of replacing it. The expected resolution time is 11:30 a.m. EST.
Update: The service disruption started at about 1:00 pm EST and resolved at about 2:00 pm EST.
The practical impact of this in most cases was that if a Comcast subscriber attempted to access web interface using HTTPS that attempt was likely to fail.
As far as we can tell, this issue did not impact any unencrypted protocols like HTTP or SMTP, so most outgoing emails and incoming clicks/opens were unaffected.
The problem was resolved on its own.
Comcast users may have intermittent difficulty in accessing the Inboxfirst web interface due to a localized Comcast outage near the data center.