Does anyone have experience with email verification software?

September 22, 2021
by a searcher from The University of Chicago - Booth School of Business in Chicago, IL, USA
We haven't been relegated to spam yet, but want to employ some preventative software. We've heard NeverBounce is good but wanted to know if there are some other good alternatives (preferably free ones). Thanks!
in Frankfurt, Germany
from University of Southern California in North Palm Beach, FL, USA