According to twitter and mailop Network Solutions is having issues with inbound mail, with both TCP level disconnections and 451 deferrals.
@annaciamp @netsolcares We're seeing email from our servers to netsol queuing up, consistently since 9:51 am (U.S. Central)
— Frank Bulk (@frankbulk) October 14, 2015
Down Detector and other reports suggest it’s been an issue since about 8am Pacific Time.
(Thanks for mentioning it, Frank.)
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 MoreI’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: