Software Alternatives, Accelerators & Startups

MailboxValidator VS Mailerio

Compare MailboxValidator VS Mailerio and see what are their differences

MailboxValidator logo MailboxValidator

MailboxValidator - Verify Email Address

Mailerio logo Mailerio

Reduce bounce rates, improve deliverability, and protect your sender reputation with real-time email validation tool.
  • MailboxValidator Landing page
    Landing page //
    2022-03-05

MailboxValidator email validation clean email lists and reduces bounce. It is a secure and reliable email validation service to check for invalid email addresses. It connects to the mail server and checks whether the mailbox exists or not. It reduces email bounce rate & costs. It increases conversion rate & sender reputation.

  • Mailerio Dashboard screenshot
    Dashboard screenshot //
    2025-07-14
  • Mailerio Bulk upload statistics report
    Bulk upload statistics report //
    2025-07-14

Keep your email lists clean with Mailerio, the affordable email validation tool that helps reduce bounce rates, improve deliverability, and protect your sender reputation. Whether youโ€™re launching a campaign or collecting leads, Mailerio ensures your emails reach real people, not spam folders or dead inboxes.

Mailerio helps you avoid blacklists and maintain a strong sender reputation by identifying and removing invalid, risky, or duplicate email addresses from your lists. By cleaning your list, you save money on email marketing, reduce wasted sends, and boost ROI by reaching only engaged, active users.

You can upload email lists in bulk and verify them manually in seconds, no technical skills required. Each email is sorted as deliverable, undeliverable, risky, duplicate, blacklisted, or greylisted, so you can take action quickly. For ongoing protection, Mailerioโ€™s real-time API integrates easily with your forms, CRM, or signup tools to stop fake or mistyped emails before they enter your system.

There are no contracts or recurring fees. You simply buy credits and use them whenever you need, they never expire. Plus, Mailerio offers premium support and expert advice to help you troubleshoot and improve your email performance fast.

With over 98% deliverability, 95%+ validation accuracy, and 99.99% uptime, Mailerio gives you reliable, high-quality email validation at a price that fits your budget. Clean your lists, improve your campaigns, and protect your sender reputationโ€”all with one easy-to-use tool.

MailboxValidator

$ Details
freemium $19.95 (1000 Emails)
Platforms
REST API Generic HTTP API Browser
Release Date
2014 January

Mailerio

$ Details
paid Free Trial $7.0 (per 1000 email validations)
Platforms
-
Release Date
2025 July
Startup details
Country
Latvia
State
Aizkraukle
City
Aizkraukle
Founder(s)
Agnese, Artลซrs
Employees
1 - 9

MailboxValidator features and specs

  • Free Bulk Trial
    Free bulk trial plan with 100 credits.

Mailerio features and specs

  • Real-Time Email Validation API
    Easily integrate a powerful email verification API into your app, form, or CRMโ€”check emails using a real-time email validation API before they hit your list.
  • Bulk Upload Email Lists
    Upload your email files and verify them manuallyโ€”no tech skills needed. Perfect for quick list cleaning before a campaign.
  • Single Email Validation
    Verify one email at the time
  • Whitelist
    Save domains that should always pass the verification checks
  • Blacklist
    Add domains that you don't want to send emails to

MailboxValidator videos

MailboxValidator Email Validator Services

Mailerio videos

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Category Popularity

0-100% (relative to MailboxValidator and Mailerio)
Email Verification
48 48%
52% 52
Email Marketing
47 47%
53% 53
Email Verification API
100 100%
0% 0
Email Address Verification

Questions and Answers

As answered by people managing MailboxValidator and Mailerio.

Why should a person choose your product over its competitors?

Mailerio's answer:

One of the lowest prices for email address validation in the market. Simple pricing and no hidden fees.

What makes your product unique?

Mailerio's answer:

Built specifically for SaaS founders & creators. Affordable solution with the ability to validate Yahoo emails.

How would you describe your primary audience?

Mailerio's answer:

SaaS founders, SMBs, small creators, and agencies.

What's the story behind your product?

Mailerio's answer:

Mailerio is built by a couple who launched their first SaaS, Ajelix, in 2022. Over the years, they struggled with email deliverability: emails landed in spam, bounce rates exceeded thresholds, customers couldn't receive confirmation emails, and it hurt their business. So, they built an email validation tool for internal use that solved the issue, achieving an average open rate of 65% and reducing their bounce rate to 0.2%. Thatโ€™s when they realized that if they had this problem, others likely did too, so they launched Mailerio for public access.

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare MailboxValidator and Mailerio

MailboxValidator Reviews

  1. Fast and accurate results

    We are using MailboxValidator API to validate user sign-up to block disposable email. It has been working very well.


Top 10 Bulk Email Verifier and Validation Services Compared
It validates your email lists to check for invalid or undeliverable emails so that you can maximize your marketing campaign potential. You can either upload your email list and clean it in bulk using the CSV format, or integrate with MailboxValidator API. MailboxValidator interface is fully integrated with major ESP (Email Service Provider). Alternatively, a list can be...
Top 10 Bulk Email Verification and Validation Services Compared
Cost: MailboxValidator provide basic bulk plan starts at $19.95 for 1000 email validation for 30 days with 24/7/365 email support. To verify huge bulk list it costs $0.0007 per validation. Meanwhile, the API plan starts at $29.95 for 3,000 queries per month. MailboxValidator offers the low rate of less than $0.0009 per each email validation for large-volume email queries.

Mailerio Reviews

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What are some alternatives?

When comparing MailboxValidator and Mailerio, you can also consider the following products

ZeroBounce - Removes invalid emails from your list to prevent email bounces from ruining your deliverability.

Emailable - Emailable is the fastest and one of the most accurate email verification services in the industry, helping more than 900,000+ customers land their emails in the inbox. Emailable removes invalid email addresses and eliminates bounces.

Email List Validation - Email List Validation is an online self-service application to verify email lists and improveย deliverability.

Kickbox - Verify your email address lists with our drag and drop interface, or integrate into your app with our API. Prevent fake and bot account sign-ups by confirming your users are real humans with a real email address.

Email List Verify - The Fastest Way to Improve Email List Deliverability and ROI

Bulk Email Checker - Bulk Email Checker is an online service used to Verify and Clean Email Addresses. Its Easy to Use, Reliable and used by 1000's of Businesses.