Integrations

Keep your list clean inside the platform you already use.

Connect any of 40 email platforms in one click. mailfloss then removes the addresses that bounce, drag down your sender score, and quietly inflate your bill — automatically, every day, right where your contacts already live.

Free 7-day trialEasy setupMoney-back guarantee
Why native beats export-and-import

A real integration — not a CSV round-trip.

Most verifiers make you export your list, run a check, then re-import the survivors — every single time. Miss a round and the dead addresses pile back up, your bounce rate climbs, and your campaigns start landing in spam. mailfloss connects straight into your platform and does the work where your contacts already live, so the cleanup just keeps happening without you.

01
One-click connect

Authorize over OAuth from your dashboard — no API keys to copy, no developer, no Zapier in the middle. Disconnect anytime.

02
Two-way by design

Removals, tags, and typo fixes are written straight back to your platform. Nothing to re-upload, nothing to reconcile.

03
Real-time and scheduled

New signups are verified the moment they arrive; your existing list is re-checked on a schedule. Set it once per platform.

04
Rules per connection

Delete invalids on one platform, tag them on another, keep Typo Fixer on exactly where you want it. Every connection has its own settings.

Mailchimp
Connect
Klaviyo
Connect
HubSpot
Connect
ActiveCampaign
Connect
Kit
Connect
beehiiv
Connect
GoHighLevel
Connect
Braze
Connect
AWeber
Connect
Drip
Connect
MailerLite
Connect
Constant Contact
Connect
Brevo
Connect
Campaign Monitor
Connect
GetResponse
Connect
Ontraport
Connect
iContact
Connect
Sendlane
Connect
Moosend
Connect
Keap
Connect
Intercom
Connect
Customer.io
Connect
Iterable
Connect
Ghost
Connect
Emma
Connect
SendPulse
Connect
Benchmark
Connect
Mautic
Connect
MailUp
Connect
ActiveTrail
Connect
VerticalResponse
Connect
Gist
Connect
Wishpond
Connect
Campaigner
Connect
Autopilot
Connect
Encharge
Connect
ClickFunnels
Connect
DailyStory
Connect
Mailigen
Connect
Remarkety
Connect
Don’t see your platform?
No problem. Upload a CSV directly or use our extensions for Sheets, Airtable, and Zapier — no integration needed.
Verify a list directly
Showing 40 of 40 email platforms
5,000+ teams clean their lists with mailfloss
BusbudHoneyloveWhimsicalOoniPurple CarrotBrightHireTruvaniLearnystRoadtrippersSheep Inc.HR AcuityMOD LightingFairfax & FavorSnackCrateNeighborlyPodiaHometown ApparelConstellationLinda's1st PhormKokoonPeter GlennwikiHowEvernampons
Integration FAQ

Common questions.

One click via OAuth from inside the mailfloss dashboard. We never ask for API keys, and you can disconnect at any time. Most platforms connect in under 30 seconds.
The subscribers every other tool deletes

What's the Typo Fixer worth to you?

When [email protected] signs up, other verifiers mark it invalid and delete it. mailfloss fixes the typo and keeps the customer you already paid to acquire.

New signups / month1,500
Cost to acquire a customer (CAC)$50
Ecommerce CAC averages $68–$84 in 2025 — from ~$23 (pet) to $250+ (electronics).
Lifetime value per customer (LTV)$150
Most teams aim for an LTV:CAC of 3:1 or better.
Revenue mailfloss recovers / year
$84,450
From 563 customers a year that other verifiers would silently delete.
Subscribers recovered / year563
CAC you already spent on them, rescued$28,150
Free 7-day trial · no card to see it work
Ready when you are

Stop paying to email a leaky list.

Connect your email platform in 30 seconds. mailfloss starts catching typos and cleaning your list on autopilot.

Free 7-day trialEasy setupMoney-back guarantee