Inmotion Hosting - Otherwise Known As Total Disaster Hosting
Run, Don't walk from this hosting organization
MX Listing - Simply put the 18.104.22.168 URL address into your browser address window to see who owns this address.
I need to have reliable delivery of e-mail not this garbage -
There is nothing wrong with the e-mail the way it was sent. When you jump through their hoops to get the spam listing removed, they ask for more money to monitor your e-mail account.
Good luck with your experience