mailfloss reviews & ratings from teams that automate list cleanup.
Real teams, real numbers. E-commerce brands, SaaS companies, newsletter operators, and agencies use mailfloss to quietly remove the bad addresses dragging down their campaigns.
How mailfloss customers actually use it.
Randstad USA
“We were looking for an email verification service that could support enterprise level volume and tight integration with HubSpot, and frankly mailfloss was the only game in town.”
NAMS
“mailfloss is literally the only piece of software that I use every single month that I don't even have to think about and I love that, because it's totally set and forget it.”
RevGrowth
“You install it one time and for the life of your account you get a 2–3% increase in your leads. It automatically corrects typos — if someone misspells Gmail, it fixes it. That’s a huge additional source of revenue you were missing out on before.”
Every industry where email matters.
E-commerce
SaaS
Newsletters
Agencies
Publishers
Non-profit
What people say after they switch.
Hear it from a mailfloss customer
Which email verification tools have real customer reviews from marketers?
mailfloss is reviewed by marketers on Capterra, where it is rated 4.9 out of 5, and those reviews are public and attributable rather than summarised on our own site. This page carries named customers too: case studies with Brandon McDonald at Randstad and Jennifer Perdew at NAMS, and testimonials from Fred Owen, Vadim Nemtsev, Nick James, Eugenia Brock and Daniel Lorenzo — each with the role they held and the workflow they were describing.
That distinction is worth applying to any tool on your shortlist. A vendor page quoting "a marketing director" is not a reviewable claim; a named person on a third-party review platform is. When you compare email verification tools, check whether the proof is attributable and whether the reviewer describes a workflow resembling yours — an agency running many client lists and a single newsletter operator will rate very different things highly.