Outage
Comcast having a bad day
Comcast announced this morning that they’re having problems receiving mail and their customers are seeing significant delays.
We are currently experience an issue which is causing a significant delay in receiving email. This is not a good thing and we are very aware of the problem and are working hard to restore it.
Technical description for those who are interested:
A problem on a couple of the network switches caused our blob storage to get into a bad state. Lots of peering errors etc, this coupled with a bug in the blob storage vendors software is prolonging resolution. We have an incident bridge going with the team and the developers.
Official notice on Xfinity Forums
HE.net DNS problems
Hurricane Electric had a significant outage of their authoritative DNS servers this morning, causing them to return valid responses with no results for all(?) queries. This will have caused delivery problems for any mail going to domains using HE.net DNS – which will include some of their colocation customers, as well as users of their free services – but also will have caused reverse DNS to fail for most servers hosted by Hurricane Electric worldwide, so if any of your mail is being sent from HE hosted machines you may have seen problems.
(We’re HE customers so we noticed. Still happy with them as a vendor.)
Network Solutions email issues
According to twitter and mailop Network Solutions is having issues with inbound mail, with both TCP level disconnections and 451 deferrals.
Read MoreYahoo FBL Down
We’re seeing multiple reports that the Yahoo feedback loop stopped working some time in the past couple of days. If you’re not seeing reports, it’s not just you.
Read MoreOutlook 365 having a bad day
I’ve seen scattered reports today that some mail to the Outlook 365 servers is failing. This has been confirmed by ZDNet. Only folks with a Office 365 account can log in and see the status messages, but there are some folks on the mailop list posting updates from the website.
Attempts to mail to affected domains results in this response: