Email Info Checker Semrush — Premium

This is where the SEO roots of SEMrush shine. The tool doesn't just check if an email is formatted correctly; it queries the domain’s DNS records. It looks for MX (Mail Exchange) records. If a domain has no MX records, it cannot receive email. By catching this early, the tool prevents "soft bounces" that damage your sender reputation.

This filtration process typically reduces a prospect list by 10-20%, but the open rates for the remaining prospects skyrocket because the "dead weight" has been cut. email info checker semrush