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Mailfloss

Vendor: Mailfloss

Mailfloss is an automated email verification tool that removes invalid addresses, reduces bounce rates, and improves email deliverability by integrating with popular email service providers.

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email Email marketers Sales teams using email outreach Businesses managing large email lists #email-verification #deliverability #bounce-reduction #list-cleaning #esp-integration

Overview

Mailfloss is an automated email verification tool designed to help businesses maintain clean email lists. It removes invalid email addresses, corrects common typos, and integrates with over 35 email service providers to reduce bounce rates and improve deliverability. The platform offers daily list cleaning, SPF/DKIM configuration support, and customizable rules for list management. It is primarily used by marketers and sales teams who rely on email outreach and need to maintain high deliverability standards.

Key Features

Automated Email Verification

Performs daily verification to automatically remove invalid email addresses from connected lists.

SPF/DKIM Configuration

Provides guidance and tools to configure SPF and DKIM records to enhance email deliverability.

Typo Fixing

Detects and corrects common email address typos to recover potentially valid contacts.

ESP Integrations

Integrates with over 35 email service providers including Mailchimp, Constant Contact, and HubSpot.

Custom Rules

Allows users to set preferences for how lists are cleaned and which addresses are removed.

Pros & Strengths

  • ✓
    Easy Setup and Automation: Connects to ESPs quickly and runs verification automatically without manual intervention.
  • ✓
    Improves Inbox Placement: Reduces bounce rates and maintains sender reputation by keeping lists clean.

Cons & Tradeoffs

  • ⚠
    Higher Cost for Large Lists: Pricing scales significantly with volume, making it expensive for businesses with very large email databases.
  • ⚠
    Limited Advanced Features for Small Users: Smaller plans may lack advanced segmentation or analytics features needed by power users.

Known Limitations

  • • Pricing is volume-based and can become costly for high-volume senders.
  • • Does not offer a free plan or free trial.
  • • Advanced features are limited on lower-tier plans.

Pricing & Plans

Model: subscription
USD17 /month

Mailfloss offers three subscription tiers: Starter at $17/month for up to 5,000 emails, Pro at $72/month for up to 100,000 emails, and an Enterprise plan with custom pricing for larger volumes.

✓ Free Plan ✓ Free Trial

Editorial Info

Last Reviewed: 2026-08-20

Verified Sources & Research

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