mailfloss is a cloud-based, fully automated, bulk email verification platform that helps small and large businesses automatically backup, clean, and verify email lists. The platform allows users to connect their email marketing platform to Mailfloss, customize settings, and automate verification and protection actions, no developers, no spreadsheets, and it's a one-stop-shop approach to email verification.

mailfloss has top-notch integrations that enable businesses  to reduce bounce rates and increase open rates with cleaner email lists. Integrates with several of the most popular email marketing platforms including MailChimp, Constant Contact, Ontraport, Campaign Monitor, HubSpot, AWeber, ActiveCampaign, Infusionsoft, ConvertKit, Sendlane, Drip, Sendinblue, and Klaviyo, with more being added regularly.

Automatically Remove Invalid Email Addresses Before They Become a Problem


Automatic daily cleaning keeps email lists free of typos and other invalid email addresses that affect inbox deliverability.

Crash protection prevents lists from being filled with old and abandoned email addresses. 

Powerful customization options put you in full-control on what to do with invalid email addresses, as well as how aggressive you want to clean your email list.

Get a detailed, color-coded view of all email verification processes as they complete.

Fully automate the email verification process with a set-and-forget approach that doesn't require an email service provider.


  • Bulk Email Verification
  • Catch-all Server Detection
  • Contact Management
  • Data Verification
  • Disposable Email Detection
  • Domain Check
  • Drag & Drop
  • Email Address Extraction
  • Email Management
  • Email Marketing
  • Email Tracking
  • Single Email Verification
  • Spam Blocker
  • Spam Detection
  • Subscription Management
  • Syntax Check
  • Third Party Integrations
  • Unsubscribe Database


  • Mailchimp
  • HubSpot Marketing Hub
  • Zapier
  • ActiveCampaign
  • MailerLite
  • Sendinblue
  • Constant Contact
  • Campaign Monitor
  • Keap
  • Klaviyo
  • ConvertKit
  • AWeber
  • Drip
  • Sendlane


Launch Pro -- $200/mo

Launch Business -- $49/mo

Launch Lite -- $17/mo

                                                           Learn more...