Is the back end of CC Screen Reader compatible (508 compliant)?

I'm in the process of hiring an administrative support role for my department, and my top candidate is blind and uses a screen reader. Will the Constant Contact software navigation work with screen reader technology (JAWS, NVDA, etc.)? Also, I found a message stating that CC emails don't use tags to indicate what are hearders vs. bodytext. This was from 2020. Has this been addressed? Thanks for any help you can offer.