mailfloss vs Proofy: Data Enrichment Tool Comparison

mailfloss vs Proofy: Data Enrichment Tool Comparison

mailfloss and Proofy compete head-to-head in the B2B lead data and contact enrichment space. This guide compares their pricing tiers, feature sets, and integration ecosystems to help you make a confident decision.

The Quick Answer

By each vendor's own wording, mailfloss lists cleans your list daily and removes addresses that decay over time, while Proofy lists bulk email verification and single verification in real time. A capability both offer can appear under different names, so read both feature lists below.

Proofy offers a lower entry point at $5/mo compared to mailfloss at $29/mo.

If your priority is finding accurate contact data for target accounts, both tools target it. The right choice depends on your budget, team size, and the specific capabilities you need most.

Understanding the Core Difference

mailfloss is mailfloss is an email verification service that connects to your email marketing platform and cleans the list daily on autopilot, removing bad addresses, fixing typos and blocking bot and spam signups in real time. Subscriptions are sized by credits per month; prepaid credits cover one-time list uploads.

Proofy is Proofy is an email verification service for bulk list cleaning and real-time single verification through an API, with SMTP, syntax, domain, disposable and accept-all detection. Credits are sold pay-as-you-go or by subscription, never expire, and unknown results are not charged.

The two platforms take different approaches to solving the same core challenge.

Pricing Comparison

$29/momailfloss entry plan

Lite

Usage-basedProofy entry plan

Trial pack

mailfloss Pricing (as of September 2026)

Source: mailfloss Pricing

Proofy Pricing (as of September 2026)

Source: Proofy Pricing

Pricing Analysis

Proofy offers the lower entry point ($5/mo vs $29/mo). Teams watching their budget will appreciate the savings, especially when starting out.

Features Breakdown

mailfloss lists

• Cleans your list daily
• Removes addresses that decay over time
• Custom keep and remove rules
• Zapier integration
• Real-time API
• Webhooks
• and 4 more listed below

Proofy lists

• Bulk email verification
• Single verification in real time
• Email verifier API
• Duplicate email remover
• ISP detection
• Disposable and temporary detection
• and 4 more listed below

mailfloss Key Features

• Cleans your list daily
• Removes addresses that decay over time
• Custom keep and remove rules
• Zapier integration
• Real-time API
• Webhooks
• Automatically fixes typos
• Prevents bounces in real-time
• Auto-tags subscribers after verification
• Single sign-on

Proofy Key Features

• Bulk email verification
• Single verification in real time
• Email verifier API
• Duplicate email remover
• ISP detection
• Disposable and temporary detection
• Accept-all detection
• Syntax validation
• SMTP verification
• Mailbox full detection

The two lists below are a diff of each vendor's own feature list by exact wording, so a capability both tools offer can appear on either side under a different name.

Listed only by mailfloss

• Cleans your list daily
• Removes addresses that decay over time
• Custom keep and remove rules
• Zapier integration
• Real-time API
• Webhooks
• Automatically fixes typos
• Prevents bounces in real-time
• Auto-tags subscribers after verification
• Single sign-on

Listed only by Proofy

• Bulk email verification
• Single verification in real time
• Email verifier API
• Duplicate email remover
• ISP detection
• Disposable and temporary detection
• Accept-all detection
• Syntax validation
• SMTP verification
• Mailbox full detection

Integration Ecosystem

mailfloss Integrations

mailfloss connects with: Mailchimp, Klaviyo, HubSpot, ActiveCampaign, Kit, beehiiv, GoHighLevel, Braze, AWeber, Drip, MailerLite, Constant Contact, Brevo, Campaign Monitor, GetResponse, Ontraport, iContact, Sendlane, Moosend, Keap, Intercom, Customer.io, Iterable, Ghost, Emma, SendPulse, Benchmark, Mautic, Zapier.

Proofy Integrations

Proofy connects with: .

Integrations listed only by mailfloss: Mailchimp, Klaviyo, HubSpot, ActiveCampaign, Kit, beehiiv, GoHighLevel, Braze, AWeber, Drip, MailerLite, Constant Contact, Brevo, Campaign Monitor, GetResponse, Ontraport, iContact, Sendlane, Moosend, Keap, Intercom, Customer.io, Iterable, Ghost, Emma, SendPulse, Benchmark, Mautic, Zapier.

Use Case Recommendations

Best Fit for mailfloss

• Budget-conscious teams looking for an affordable data enrichment tool
• Organizations with complex tech stacks needing broad integration support (29 integrations)
• Enterprise buyers who prefer custom pricing and dedicated support

Best Fit for Proofy

• Budget-conscious teams looking for an affordable data enrichment tool
• Enterprise buyers who prefer custom pricing and dedicated support
• Revenue operations teams building targeted prospect lists
• Marketing teams enriching CRM data for segmentation

Feature Comparison Summary

Getting Started Checklist

1. Define your B2B lead data and contact enrichment requirements and monthly budget
2. Estimate your expected data credits or contact lookups to find the right tier
3. List the integrations your team currently relies on
4. Sign up for free trials or demos of both platforms
5. Run a small test with each tool before making a commitment
6. Evaluate the onboarding experience and support quality

Final Thoughts

mailfloss and Proofy both serve the B2B lead data and contact enrichment market. Proofy offers a more accessible entry point at $5/mo, while mailfloss starts at $29/mo. Your decision should weigh pricing against the specific features that matter most for your workflow.

Start with a trial of each to see which platform fits your team's daily process. The best tool is the one your team actually uses consistently.

Pricing and features verified as of September 2026. Visit mailfloss and Proofy for current information.