System Status

ISP currently blocking or limiting email originating from Yale

Event date: 
Wed, 04/09/2014 - 9:34am
Expiration date: 
Tue, 04/08/2014 - 8:00pm
Last updated: 
Thu, 04/10/2014 - 9:01am

The following Internet Service Providers (ISPs) are currently blocking or limiting email originating from Yale:

  • Hotmail - blocking 1 server
  • - blocking
  • Juno - blocking
  • Comcast - delaying
  • AOL Delaying
  • Yahoo - delaying
  • - delaying 
  • other .gov domains -delaying or blocking

There is no estimated time of availability. If you have a non-clinical critical email which is returned, please use an alternate email account other than your account.. Note that poor reputation may affect delivery to ISPs other than those listed. The recommendation to send non-clinical critical mail through a account applies to those as well.


ITS continues to diagnose all reported problems with email delivery and will post updates here. If you believe you are having a problem with email delivery, please report it to the ITS Help Desk at 203-432-9000 or

Updates will be posted on the status page at:

ITS appreciates your patience and understanding as we resolve this issue.