Email not received from my personal email server

Like many others, my domain's email is being sent to spam by Comcast's servers. I haven't been able to figure out how to reply to the lengthy thread about this, so I'm starting a new question. Maybe I'll be able to DM @ComcastAntiSpam after this.

My domains are harkin.net and lipsey.to. The server is m2.harkin.net,  198.74.48.42 and 

2600:3c01:e000:14b::1

Thanks,

John