Domain Email blocked by comcast.net recipients
We are the Boston Area Youth Soccer League. We are attempting to send emails from a fully qualified domain (bays.org) with DKIM enabled, and registered multiple times with comcast. Yet, when we attempt to send emails to the many referees, coaches or members of the Boston Area Youth Soccer Leage not even 1% are received by the clients.
Using Sparkpost, we can see that they are delivered to the comcast mail server, but silence after the delivery receipt, and no open receipt. The @comcast.net subscribers see NOTHING. Concurrently all of the @yahoo, @gmail accounts receive immediately.
For years we've had this issue. WHAT CAN WE DO to increase delievery reliability? Should we tell everyone to leave @comcast.net accounts on the floor and get a @gmail account?