Mailfloss
Mailfloss verifies email addresses in bulk to reduce bounces and protect sender reputation.
Updated April 2026
Overview: What is Mailfloss?
It runs automatically in the background without manual effort. The platform integrates with dozens of major email service providers.
Mailfloss is an email verification platform that connects directly to your existing email service provider. Once linked, it scans your contact lists on a daily basis to identify and remove invalid or fake addresses. The tool can also detect and correct common typos in popular email domains, recovering potentially lost contacts. It supports over forty integrations, including platforms like HubSpot, Klaviyo, and MailChimp. Setup requires no coding skills, allowing teams to deploy the solution quickly. By maintaining clean data, the platform helps improve overall inbox placement rates.
Fit: Ideal customer profile.
Businesses of all sizes that rely on popular email service providers and need to maintain list hygiene automatically.
- SMB
- Mid-market
- Enterprise
Capabilities
Key features.
01
Automated daily email list cleaning
02
Corrects common email domain typos
03
Integrates with over forty providers
04
Removes invalid and fake addresses
05
Deletes unsubscribes and updates tags
06
Requires no developer resources to set up
07
Includes a money-back guarantee
08
Offers prepaid billing discounts
09
Provides priority support on higher tiers
Usage
How to use Mailfloss.
Teams connect their email service provider through a simple authorization process. After setting custom preferences for handling bad addresses, the system initiates daily automatic scans. Users can then review the cleaning logs or let the platform manage list hygiene entirely in the background.
Cost
Pricing.
$29/ Per credit
Paid plans start at $29 per month for 10,000 credits. A 7-day free trial is available.
Pro
$209.00
- 125,000 credits
- $$0.001 overage
- Unlimited ESPs
- 20% prepaid discount
- Priority support
- Single Sign-On
Business
$59.00
- 25,000 credits
- $$0.003 overage
- 10 ESP integrations
- 15% prepaid discount
- Awesome support
- Single Sign-On
Lite
$29.00
- 10,000 credits
- $$0.005 overage
- 1 ESP integration
- 10% prepaid discount
- Awesome support
- Single Sign-On
At a glance
Quick facts.
- Stack position
- Deliverability
- Category
- Data Sources, Sales Tools
- Best for
- SMB, Mid-market, Enterprise
- Pricing
- From $29/Per credit
Subcategories
- Data Validation & Verification
- Email Verification
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Questions
Frequently asked.
How do you set up Mailfloss?
You connect your email service provider, configure your cleaning preferences, and the platform handles list maintenance automatically. The entire setup process takes just a few clicks.
What does Mailfloss cost?
Pricing begins at $29 per month for 10,000 verification credits. Higher volume plans scale up to $209 per month for 125,000 credits.
What are the main benefits of Mailfloss?
The platform automates the removal of invalid addresses and fixes common typos to recover leads. It operates daily across forty integrations to maintain list health without manual work.
How does the email verification process work?
The tool scans your connected lists every day to identify addresses that will bounce. It then removes or updates those contacts based on your configured settings.
Is there a free version of Mailfloss?
There is no permanent free plan, but the service offers a 7-day trial period. You must provide a credit card to activate the trial.
Which email platforms does Mailfloss integrate with?
The tool connects directly with over forty popular email service providers. This makes it compatible with major marketing platforms like HubSpot, MailChimp, and Klaviyo.
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