Review

mailflossChecked by Vetteroo review

Ecommerce email marketers.

We check it out so you don’t have to.

Disclosure: Some links on this page are affiliate links. If you buy through them, we may earn a commission at no extra cost to you. We only recommend things we believe are useful. Read our full disclosure.

What it is
Automatic email list cleaning for email marketing tools
Best for
Email marketers who want lists cleaned automatically
Price
From $29/month, checked October 30, 2026
Prices checked
October 30, 2026

We researched mailfloss's official pricing, terms, product pages, help pages and outside reviews. We haven't used mailfloss ourselves, so this is a research-based review, not a hands-on test.

Who it’s best for

  • Ecommerce email marketers.
  • Newsletter senders.
  • Small businesses.

Who should skip it

  • Probably not the best fit for a one-time cleanup only.

How it works day to day

This part draws on mailfloss’s own product pages, help center and documentation, read October 30, 2026 (listed under Sources). We haven’t used mailfloss ourselves.

Connect your email platform, pick what to remove, and let it clean new and old subscribers daily.

Key features in use

  • Daily cleaning
  • Typo fixes
  • Integrations
  • API
  • Webhooks

Setup and learning curve

Minutes.

Integrations

None.

Support

Email.

Real-world use cases

  • Newsletters
  • Ecommerce
  • List hygiene
  • Bounce control

What it costs

Prices checked October 30, 2026, from mailfloss’s own pricing page unless noted. Prices change often, so check the official page before you buy.

  • Lite from $29/month (10,000 credits); Business from $59/month; Pro from $209/month; 17% off yearly; 7-day free trial with a card (checked October 30, 2026).
  • Its terms say it has no obligation to refund except where the law requires.

What we like

  • Top GetApp score.
  • Cleans lists daily.
  • Connects to Klaviyo and others.
  • Free trial.

What to watch for

  • GetApp showed 4.9 out of 5 (39 reviews) as of October 30, 2026.
  • No Trustpilot profile found as of October 30, 2026.
  • Card required for the trial.
  • Refunds not promised.

The fine print

  • Cancel before the trial ends if it is not for you.

The main alternative: ZeroBounce Checked by Vetteroo

ZeroBounce is a widely used email verifier.

What it costs: Free 100/mo; $39 for 2,000 credits, checked October 30, 2026

Read our full ZeroBounce review

Pick mailflossChecked by Vetteroo if you…

  • want automatic daily cleaning.
  • use Klaviyo or Mailchimp.
  • want hands-off fixes.

Pick ZeroBounceChecked by Vetteroo if you…

  • want one-off verification.
  • want pay-as-you-go credits.
  • want a free monthly allowance.

Our take

mailfloss is a well-rated hands-off list cleaner; use the trial before paying.

Side by side

CompanyBest forStarting priceTrial / refund
mailfloss Checked by VetterooEmail marketers who want lists cleaned automaticallyFrom $29/month, checked October 30, 20267-day trial; refunds not promised
ZeroBounce Checked by VetterooMarketers who need to clean email lists before sendingFree 100/mo; $39 for 2,000 credits, checked October 30, 2026100 free credits monthly

From our company records. Check the official pages for current prices.

What we checked

  • mailfloss's pricing, product pages and terms, read October 30, 2026
  • Trustpilot, searched October 30, 2026 (no usable score for mailfloss)
  • ZeroBounce's details: from our published review and its official pages, October 30, 2026
  • The other official and outside pages listed under Sources (links checked October 30, 2026)

Sources

Visit mailfloss’s official site

How we review

We read the company's own terms, test the sign-up or booking steps where we can, and compare it with alternatives. A commission never changes what we write. Read our disclosure.

Disclosure: Some links on this page are affiliate links. If you buy through them, we may earn a commission at no extra cost to you. We only recommend things we believe are useful. Read our full disclosure.