# Mailfloss review (2026): is the free plan enough? > Email list cleaning that runs inside your email platform Checked Nov 13, 2026 ยท graded Nov 13, 2026 by ToolGPA. Mailfloss is an email verification service that connects to an email marketing platform and checks addresses on a schedule and at signup. It removes or tags bad addresses and fixes common typos in place. Prepaid credits cover one-off CSV uploads, and a REST API is also offered. - **Category:** Email Verification & Deliverability - **Made by:** mailfloss - **Website:** https://mailfloss.com - **Runs on:** Web - **Who should skip it:** Tight if you stay free, as 500 verifications a month runs out fast. - **Facts last checked:** Nov 13, 2026 ## Pricing As of Nov 13, 2026, Mailfloss has a free plan, and paid plans start at $29 per month for 10,000 credits, billed monthly. - **Pricing model:** Free plan - **Free plan:** 500 verifications a month, renewing every month. - **Free trial:** None listed. | Plan | Price | What you get | | --- | --- | --- | | Lite | $29 per month for 10,000 credits, billed monthly | Connects 1 email platform. Credits step up to 510,000 a month at a higher price; higher steps are not priced on the page. | | Business | $59 per month for 25,000 credits, billed monthly | Connects 10 email platforms. Credit steps run up to 525,000 a month at higher prices. | | Pro | $209 per month for 125,000 credits, billed monthly | Unlimited email platforms, priority human support and single sign-on. Credit steps run up to 625,000 a month. | Read from https://mailfloss.com/pricing/ on Nov 13, 2026. Prices change, so confirm with Mailfloss before buying. ## Ways to pay less - **Save 17% with annual billing** (Annual discount): The pricing page has a Monthly/Annual toggle labeled Save 17%. The annual prices were not readable in the page text. Source: https://mailfloss.com/pricing/ ## Key features - **Typo Fixer:** Recognizes more than 250 typo patterns in email domains and corrects the address in place instead of deleting the subscriber. - **Signup verification:** Instafloss checks each new signup as it arrives and screens out fake, disposable, role-based and dead addresses. - **Daily list cleaning:** Autofloss scans new subscribers every day and removes those that fail validation, with custom keep and remove rules. - **Decay protection:** Re-checks older subscribers on a schedule, since addresses on a list go bad over time. - **Prepaid credits:** For lists outside a supported platform, credits are bought once, never expire, and are used by uploading a file. - **API and Zapier:** Every subscription plan lists a real-time API, webhooks and a Zapier integration. ## Good for - Email marketers who want list cleaning running without exports and re-imports - Ecommerce stores sending from Klaviyo, Mailchimp or similar platforms - Small lists, since 500 verifications a month are free ## Worth knowing - Subscription plans need a supported email platform; others must use prepaid credits. - A credit card is required for the 7-day trial, and the plan starts on day 8. - Prices on the page are read as monthly; the page offers an annual option that saves 17%. - Only the entry credit step of each plan shows a price in the page text read here. ## ToolGPA grades **GPA: 2.2 out of 4**, graded Nov 13, 2026. mailfloss checks and cleans the list in your email platform, with a typo fixer and signup checks. The free plan is 500 verifications a month, subscriptions need a supported email platform, and the trial wants a card. - **Value for money: C.** $29 a month for 10,000 credits, between the email-checker category's middle of $23 and its dearer quarter of $49. - **Free plan and trial: C.** 500 verifications a month, renewing, which is a cap a real list passes. The 7-day trial needs a card. - **Features: C.** Typo fixer, signup checks, daily cleaning and decay protection. But subscription plans need a supported email platform. - **Ease of use: C.** No store rating on record. You connect your email platform before it works. - **Platforms and integrations: B.** Web with Mailchimp, Klaviyo, HubSpot, ActiveCampaign, Kit, Brevo and Zapier links, plus an API. These are ToolGPA's own grades. Graded from this listing, whose facts were read from mailfloss's own pages on 13 November 2026. Not based on using the product, and shorter than our full reviews. ## Where it stands among email verification and deliverability tools - Mailfloss's GPA of 2.2 is higher than 23 of the 61 other email verification and deliverability tools we grade, and level with 13. - It stands best on platforms and integrations (B, above 28 of 61) and worst on features (C, above 0). - Its paid plans start at $29 a month, against a middle price of $21.50 for the category: 27 of the 43 others that charge start lower. - On features, ease of use and platforms it scores 2.3 out of 4. 7 tools score higher and cost less. The category's chart of price against score: https://toolgpa.com/charts/email-deliverability ## Keep it, or make your own? **Keep it.** To replace Mailfloss you would be making newsletters sent to thousands of people that still reach the inbox. That is not a weekend's work, with an AI app builder or without one. It costs $348 a year. - You could not: Newsletters sent to thousands of people that still reach the inbox. - You could not: Connections to other products, each kept working as those products change. - You could not: Checking that an address exists without writing to it. - You could not: What a company asks for before it lets staff use something: roles and permissions. A judgement by ToolGPA from this listing, by rules that are the same for every tool. Nothing was built to test it. ## Works with Mailchimp, Klaviyo, HubSpot, ActiveCampaign, Kit, Brevo, Zapier, GetResponse **Tags:** Email verification, Email campaigns, Public API, Workflow automation ## Alternatives - [Bouncer](https://toolgpa.com/tools/bouncer): Email list verification with credits that never expire. [Compare](https://toolgpa.com/compare/bouncer-vs-mailfloss) - [ZeroBounce](https://toolgpa.com/tools/zerobounce): Email list verification with warm-up and DMARC monitoring in one plan. [Compare](https://toolgpa.com/compare/mailfloss-vs-zerobounce) - [NeverBounce](https://toolgpa.com/tools/neverbounce): Email list cleaning and real-time verification, now part of ZoomInfo. [Compare](https://toolgpa.com/compare/mailfloss-vs-neverbounce) - [Emailable](https://toolgpa.com/tools/emailable): Email list verification with inbox reports and blacklist monitoring. [Compare](https://toolgpa.com/compare/emailable-vs-mailfloss) - [MillionVerifier](https://toolgpa.com/tools/millionverifier): Low-cost bulk email verification with credits that never expire. [Compare](https://toolgpa.com/compare/mailfloss-vs-millionverifier) ## Sources The prices, plans, platforms and features above were read from these pages on Nov 13, 2026: - https://mailfloss.com/pricing/ - https://mailfloss.com/ - https://mailfloss.com/features/ - https://mailfloss.com/about/ Page: https://toolgpa.com/tools/mailfloss Listed by ToolGPA (toolgpa.com).