dns-records Old Custom DNS settings

I'm wondering if anyone would be able to look at these old MX records and tell me if they could potentially be causing a problem with email delivery. I am familiar with the regular MX records that are categorized as Google Workspace. Those look good. The ones I'm curious about are in the custom records section.

This domain was previously transferred from a different provider and is now managed by Squarespace. My client is getting spotty email delivery and I'm wondering if these old records could be the culprit. I am not the original designer/person who set everything up, just trying to sort this email situation out.

Thanks is advance for any wisdom on this topic. 

Cami