Automatically Remove Hard Bounces, Fakes, and Misspelled Emails From Your Email Lists

Connect your email service provider and mailfloss automatically removes invalid email addresses so the emails you send get in front of more ideal customers
Start your free trial

Free 7-day trial Easy setup Cancel anytime

Fake emails in your list hurt your business.

When you send emails to fake email addresses you get penalized. That means more of your emails end up in spam and less in the inbox of your real customers.

mailfloss dashboard
mailfloss ESPs

Free 7-day trial Easy setup Cancel anytime

mailfloss works for you and removes fake emails before they become a problem.

When you connect mailfloss to your favourite email service provider, we scan for invalid email addresses and remove them every single day, increasing your email deliverability and getting more of your emails into the priority inbox.

We even fix typos of popular email services automatically

Email services like Gmail, Hotmail, Yahoo, and AOL frequently get mispelled. mailfloss fixes these typos and sync them with your email service provider automatically. You don't have to lift a finger.

mailfloss fixes typos automatically
Connect your ESP

Free 7-day trial Easy setup Cancel anytime

Setup in 60 seconds

All it takes is a few button clicks and you only have to do it once. No developers needed and no more cumbersome spreadsheets.

Works with your favourite email service providers

We support 16 of the most popular email service providers and we keep adding more.

Automatically delete, unsubscribe, or update tags and custom fields

You have powerful options at your fingertips. And you're in complete control of what you want mailfloss to do.

Our satisfaction guarantee

There's no commitment and no contracts. If you don't see an improvement in your email deliverability in the first 30 days cancel and we'll refund your money.

What our customers are saying

We were looking for an email validation service that could support enterprise level volume and tight integration with HubSpot, and frankly mailfloss was the only game in town.

Brandon Mcdonald
Brandon McDonald Director, Demand Generation Randstad USA

mailfloss is awesome. It's crazy accurate and super easy to use. You just set it and forget it. I'm a huge fan!

Danavir S, CopyMonk
Danavir Sarria Founder CopyMonk

I love mailfloss. I'm comfortable knowing that my email is being ... flossed... and I can send out to a clean list! Really, fantastic idea and I'm glad I found this service.

Marc S
Marc Sylvester Owner Laughingbird Software

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.

I started using mailfloss on one of my lists and to my pleasant surprise open rates increased on average by 4%! The ease of use is awesome, just set it up and forget it!

Fred Owen
Fred Owen Owner Win with Fred

As soon as I started to floss my emails each day my domain and IP address reputation in Google Postmaster tools quickly started to climb back to high once again.

mailfloss is easy to use. They have great pricing options depending on how you plan to use the product. Overall great experience!

Dalton Kane
Dalton Kane Founder Saas Bootcamp

Here's what happens when people start using mailfloss

I started using mailfloss on one of my lists and to my pleasant surprise open rates increased on average by 4%! The ease of use is awesome, just set it up and forget it!

Fred Owen
Fred Owen Owner Win with Fred

As soon as I started to floss my emails each day my domain and IP address reputation in Google Postmaster tools quickly started to climb back to high once again.

See why we're a better fit for you

mailfloss plugs your leaky email marketing bucket for you automatically

Free 7-day trial Easy setup Cancel anytime

Trusted by people from small and big businesses across industries

Salesforce
Shipstation
Amerilife
Randstad

Get up and running in 3 easy steps...

Step 1

Connect your favourite email marketing platform in a few clicks.

Connect your ESP

Step 2

Set some options to your preference. You're in complete control.

Set your preferences

Step 3

mailfloss works for you daily and automatically removes bad emails.

mailfloss does the rest

Setup in 60 seconds. Then never worry about email verification ever again.

we currently support MailChimp, Ontraport, Constant Contact, HubSpot, Campaign Monitor, AWeber, Infusionsoft, ActiveCampaign, ConvertKit, Drip, Sendlane, Klaviyo, Sendinblue, MailerLite, Moosend, Gist