ConvertKit ◆
ConvertKit (now Kit) is an email-first platform that automates email marketing, newsletter growth, and digital product sales for creators.
Free·from $33/mo
About mailfloss
What is mailfloss?
mailfloss is an email verification tool that automatically removes bad email addresses from your list. It connects to your email platform and fixes typos, blocks bot signups, and clears bounces and dead weight daily.
Problem it solves
Bad addresses cost you three times: you pay to acquire them, your platform bills you for them, and they hurt your sender reputation. mailfloss keeps your list clean so you save money and improve deliverability.
Who it's for
Built for email marketers and ecommerce teams—especially high-growth businesses using Klaviyo, Mailchimp, or HubSpot. It's not for those who prefer manual list cleaning or don't use a supported platform (but prepaid credits exist).
Real use cases
Clean up signup typos, prevent spam-trap hits, remove abandoned or dead inboxes, and keep your list healthy for better inbox placement—all on autopilot.
Key features
- Autopilot daily cleaning — Automatically removes bad addresses every day
- Typo fixing — Corrects common email typos in real time
- Bot and spam protection — Blocks fake signups from your forms
- Custom rules — Decide which categories to keep or remove
- Platform integrations — One-click connect for 40+ email platforms
- Zapier integration — Extend automation with over 5,000 apps
- Real-time API — Verify emails at the moment of signup
SaaSpartout Score
7.8
/10
Editorial score from our review methodology — not user ratings.
mailfloss Pricing
mailfloss pricing: from $29/mo.
Lite – $29/month
For small businesses. Includes 10,000 credits/month, connects 1 email platform, daily cleaning, typo fixing, custom rules, and human support.
Business – $59/month
For ecommerce email marketers. Includes 25,000 credits/month, connects up to 10 platforms (Klaviyo, etc.), plus all Lite features and priority support.
Pro – $209/month
For high-growth teams. Includes 125,000 credits/month, unlimited email platforms, webhooks, SSO, and priority human support.
All subscription plans include a 7-day free trial. Prepaid credits also available as one-time purchase (non-expiring).
Frequently asked questions
Does mailfloss offer a free trial?
Yes, every subscription plan includes a 7-day free trial. You'll need a credit card to sign up, but you won't be charged until the trial ends.
How much does mailfloss cost?
Mailfloss pricing starts at $29/month for the Lite plan, which includes 10,000 credits per month. Business and Pro plans start at $59 and $209 respectively.
Who is mailfloss best for?
Mailfloss is best for email marketers and ecommerce teams who want to automate list cleaning and improve deliverability, especially those using Klaviyo, Mailchimp, or HubSpot.
What are the top alternatives to mailfloss?
Alternatives include NeverBounce, ZeroBounce, and Kickbox. However, mailfloss differentiates with autopilot cleaning and integrations with 40+ platforms.
What is the key limitation of mailfloss?
It requires a supported email platform for subscription plans; if yours isn't supported, you need to use prepaid credits for one-time verification.
