The MX Woes Continue

Okay… I’m at a loss. My MX Record is still not propagating and I really don’t know why.
Here are my DNS entries:

Here is the MX Record:

I created this entry nearly 2 weeks ago. The host record for mail.signalpeak.org works as you’ll see in a moment.
I’ve been using MX Toolbox to check the record and for [...]