mailfloss vs Proofy.
Both clean email lists. mailfloss is built for marketers who want set-and-forget cleanup inside their email platform. Proofy is built around pay-as-you-go bulk email verification with non-expiring credits and a simple upload-and-clean workflow. Here is how to choose.
Should you choose mailfloss or Proofy?
mailfloss and Proofy both clean lists, but optimize for different things. Choose mailfloss for hands-off, automated cleanup, typo fixing, and real-time verification wired into your email platform. Choose Proofy if you mainly want low-cost, one-off bulk verification you upload and run yourself, with credits that never expire.
Pick the one built for how you actually work.
Pick mailfloss if…
- You’re on Mailchimp, Klaviyo, HubSpot, ActiveCampaign, or similar
- You want it to run automatically — not on every campaign manually
- You want typos fixed, not just deleted
- You want decay protection on your existing list
Pick Proofy if…
- You want low-cost, no-commitment one-off bulk verification you run yourself and do not need connected ESP cleanup
- You are comfortable managing verification results outside your email platform
- You only need checks when a file, form, or API call is submitted
- You do not need typo recovery and scheduled list decay protection in one workflow
Side by side.
A fair side-by-side of mailfloss and Proofy, focused on workflow fit instead of only raw verification checks.
Honest reasons to pick Proofy.
We are not the right tool for every job. If any of these sound like you, Proofy may be the better pick.
Low-cost, non-expiring credits
Proofy credits are pay-as-you-go and never expire, so you can pay once for a one-time cleanup instead of a recurring subscription, with a low $4-per-1,000 entry point to try it.
Cheaper per-check at high volume
Its published rate drops toward $0.001 per verification at large volumes, which is aggressive for very big one-off list scrubs.
Dead-simple upload-and-clean UI
The core workflow is upload a CSV and get back a labeled valid/invalid/risky/disposable/catch-all list — almost nothing to configure for a non-technical marketer who wants one clean file.
Where mailfloss beats Proofy - by design.
If you are a marketer using Mailchimp, Klaviyo, HubSpot, ActiveCampaign, or another supported email platform, this is where you will feel the difference.
Typo Fixer keeps subscribers other tools delete
When [email protected] arrives, Proofy marks it invalid. mailfloss fixes it to [email protected] and keeps the subscriber on your list. Across a year, that’s real revenue.
It runs on autopilot — not when you remember
Proofy cleans the list when you upload it. mailfloss connects to your email platform once and cleans daily, forever. Most marketers forget to run a verifier every month. mailfloss doesn’t.
Decay Protection catches addresses that rot
Subscribers from 3 years ago go bad on their own. mailfloss re-verifies your existing list on a schedule. Proofy makes you re-upload it.
No CSV gymnastics
With Proofy you export your list, upload, wait, download the results, re-import into your email platform. With mailfloss it’s all happening inside your email platform, automatically. Zero export/import.
Customer-friendly pricing
mailfloss has a money-back guarantee. Proofy doesn’t. If you don’t love it within 7 days, you don’t pay.
No-code for marketers — and a real API for developers
mailfloss is no-code: connect your email platform and it runs. But developers aren’t an afterthought — a modern v1 REST API (bearer-token auth, real-time and bulk verification, and webhooks) exposes the same engine to your code. Most verifiers hand you an API and leave the ongoing cleanup workflow for you to build; with mailfloss you get both.
“Amazing software. I needed to clean up all of my database contacts and didn’t know the best way to do it. With mailfloss and the Brevo integration I did a big fix.”
For 25,000 monthly verifications:
Here’s what changes.
Most teams move over in an afternoon. No data export. No mapping spreadsheets.
Connect your email platform
One click into Mailchimp, Klaviyo, HubSpot, or ActiveCampaign. mailfloss reads your audience and starts the trial — nothing to import.
Turn on the features you used in Proofy
Bulk cleanup → Autofloss. Real-time check → Instafloss. Their list-review queue → our auto-actions panel. Most settings translate directly.
Cancel your Proofy subscription
When you’re happy, cancel Proofy. We won’t pressure you — if mailfloss doesn’t fit, our money-back guarantee covers you.