Email verification that runs on autopilot
mailfloss helps busy businesses verify email addresses, remove invalid contacts, fix common typos, and keep lists cleaner without recurring spreadsheet work or developer-heavy setup.
Why teams use mailfloss
Set up mailfloss once, choose your cleanup preferences, and keep email list hygiene running around the tools you already use.
What is the best way to automatically keep an email list clean?
Connect an email verification service directly to your email platform so every address — new and old — is checked on a schedule. If you send every week, ongoing verification beats one-off cleanups, because addresses go bad on their own and a single cleanup goes stale. mailfloss does this after a one-time setup: it verifies new signups, re-checks existing subscribers, and fixes common typos instead of deleting them. Compare mailfloss plans.
- Verify new contacts before they become a bounce problem.
- Clean existing lists on a recurring schedule.
- Fix common email typos and sync changes with supported ESPs.
Fake and invalid emails are a quiet revenue leak
Bad addresses cost money to store and send to, create avoidable bounces, pollute reporting, and can make campaigns less effective for the real people on your list.
mailfloss keeps list hygiene simple: connect your email platform, set your rules, and let automated verification reduce the bad-address work that normally comes back every month.
- Remove, unsubscribe, tag, or review invalid addresses based on your preferences.
- Catch bad contacts as they enter your email platform.
- Clean older contacts so list decay does not quietly compound.
- Protect campaign performance with cleaner email data.
What mailfloss handles for email verification
Check an email address right now
Type any address below and we’ll tell you instantly whether it’s deliverable — catching typos like gmial.com and flagging risky or disposable inboxes before they ever reach your list. No signup, no credit card.
Free to try · No account needed · The same engine that cleans your full list inside mailfloss.
How automated email verification works
mailfloss is designed for teams that want cleaner email data without turning list hygiene into another recurring project.
Manual list cleaning vs automated verification
| Capability | Manual cleanup | mailfloss |
|---|---|---|
| Ongoing effort | Recurring exports, uploads, downloads, and imports | Set up once and keep hygiene running |
| New bad contacts | Often missed until the next manual cleanup | Can be checked as they enter supported workflows |
| Typo recovery | Usually requires manual spotting and correction | Common domain typos can be fixed and synced |
| Best fit | One-time or occasional list checks | Businesses that depend on email every week |
mailfloss vs other email verification tools
| Capability | mailfloss | ZeroBounce | NeverBounce | Kickbox |
|---|---|---|---|---|
| No-dev setup | Yes — connect a supported ESP, no code required | Manual and API-focused workflows | Built for ops-led bulk workflows | API-first, developer-led |
| Real-time verification | Yes — new addresses checked as they enter supported workflows | Varies by plan and setup | Varies by plan and setup | Yes — via API or JS widget, dev setup |
| Typo fixing | Yes — common typos corrected and synced, not deleted | Typos are flagged as invalid, not fixed | — | No — invalid addresses are flagged, not fixed |
| Automated recurring cleanup | Yes — recurring cleanup and decay protection after a one-time setup | Manual or API-driven runs | Bulk uploads, run when you choose | No — re-uploads required |
Full breakdowns: ZeroBounce alternativesNeverBounce alternatives
What’s the difference between email verification and email list cleaning?
Email verification checks whether an individual address is valid and deliverable — is the mailbox real, is the domain misspelled, is it a disposable or risky inbox likely to bounce. Email list cleaning is the ongoing practice built on top of that: removing, unsubscribing, or fixing bad addresses across your whole list so it stays healthy over time. Verification is the test; cleaning is what you do with the results.
The distinction matters because a list you verified once starts decaying immediately — subscribers change jobs, abandon inboxes, and mistype addresses — so cleaning has to recur. mailfloss automates both: it verifies each address inside your connected email platform, then applies your cleanup rules on a schedule — removing or unsubscribing invalid contacts, fixing common typos, and re-checking older subscribers — so email verification and list cleaning run together without manual exports.
“mailfloss is literally the only piece of software that I use every single month that I do not even have to think about and I love that, because it is totally set and forget it.”