11 Email Verification Tools I Tried in 2025 That Are Worth Using

Why do emails still bounce even after you verify your email list?

I used to think verifying my list once was enough, but emails still bounced, and my sender reputation suffered.

The problem? Most tools only check if the email looks valid. They miss risky ones like spam traps, catch-alls, and disposable email addresses.

In this blog, I’ve shared the email verification tools that go beyond surface-level checks. These are the ones that help you clean your list properly, reduce bounces, and protect your deliverability. 

These tools offer:

• Real-time and bulk email verification
• 95%+ accuracy with multi-step validation
• Detection for risky and low-quality email types
• Free credits or budget-friendly pricing
• Extra features like inbox placement checks, API access, and CRM integration

If you care about getting your emails delivered, this list will help you pick the right email verification tool.

Let’s get started.

A Quick Overview of the Best Email Verifiers for 2025

To get a quick glimpse of the top email verification tools, you can check this table.

Top 11 Email Verification Tools That I Use and Trust for 2025 and Beyond

Let’s now understand each platform in detail, learning its description, features, and pros and cons.

1. Free Email Verifier by Saleshandy
2. ZeroBounce
3. NeverBounce
4. Snov.io
5. Emailable
6. Clearout
7. Usebouncer
8. Hunter.io
9. MillionVerifier
10. MailerCheck
11. Skrapp.io

Want a quick look at our top email verification tools? Watch this short video to see our picks in action.

1. Free Email Verifier by Saleshandy

If you’re looking to clean your email list before a cold outreach campaign, Saleshandy’s email verifier is one of the most reliable options.

It runs 24 validation checks on every email and detects:

• Valid emails
• Catch-all domains
• Role-based addresses
• Disposable and invalid emails
• Syntax errors and inactive mailboxes

You’ll get clear results marked as Deliverable, Undeliverable, Accept-All, Role-Based, Disposable, or Unknown, and you’re not charged for unknowns.

You can verify emails in real-time or upload in bulk. Additionally, you receive 50 free credits each month, with no card required.

Now, instead of just stopping at verification, Saleshandy helps you take the next step.

It’s a complete AI-assisted cold email platform where you can:

• Find leads using filters like job title, industry, location, etc.
• Write cold email sequences using AI
• Track performance with built-in analytics
• Fix inbox placement issues with a feature called Inbox Radar

Inbox Radar shows whether your emails are landing in the Inbox, Spam, or Promotions folders across Gmail, Outlook, Zoho, and other ESPs. 

It helps you catch deliverability issues early, so you don’t waste a clean list on a broken setup.

→ Start Verifying Emails for Free (No card needed, just sign up)

Pros

• GDPR, SOC 2 Type II, and ISO 27001 compliant
• 98% email verification accuracy
• Bulk verify thousands of emails in seconds
• 700M+ B2B lead database for prospecting
• Integrates with HubSpot, Pipedrive, and Zapier
• Free 50 verification credits with signup
• Unlimited email accounts for outreach

Cons

• Allows you to verify up to only 50 email addresses for free. 

2. ZeroBounce

ZeroBounce is a good pick if you want military-grade security while verifying emails.

It follows high-security standards and is built for serious email marketers who want reliable and safe results.

When it comes to bulk email verification, it’s accurate, fast, and easy to use.

One of its standout stats for 2024 is a very low unknown result rate of just 1.69%, which means you waste fewer credits on unverifiable emails.

It also claims to offer a 99% email deliverability rate, which makes it one of the most trusted tools for getting emails into inboxes.

ZeroBounce detects:

• Spam traps
• Abuse emails
• Disposable and temporary emails
• Catch-all domains (with scoring to help you assess if they’re worth emailing)

It meets all the major security standards like SOC 2 Type II, ISO 27001, AICPA, and HIPAA. If data privacy and compliance are important to you, this tool has it covered.

Pros

• GDPR, CCPA, and SOC 2 compliant with military-grade encryption
• 99% email verification accuracy
• Fast bulk verification (10k emails in ~43 minutes)
• AI Scoring and Email Finder for lead generation
• Integrates with 45+ platforms (Mailchimp, HubSpot, etc.)
• Free 100 verification credits/month with a business domain
• Inbox Placement Tester and DMARC Monitor for deliverability

Cons

• Higher pricing for small businesses when compared to competitors like Saleshandy
• Catch-all email accuracy can be inconsistent
• Limited bulk verification (100 emails per API call)

3. NeverBounce

NeverBounce is the right pick if you want fast and accurate email verification.

Over 125,000 users use it for real-time checks and bulk list cleaning.

You receive three free verification attempts, along with some extra credits to test it out before making a payment.

NeverBounce supports:

• Bulk list cleaning
• Real-time email verification
• Automated list cleaning
• Bounce analysis for better segmentation

It also offers API access, allowing you to integrate it with your system and automatically reject invalid or risky emails at the point of entry, such as during user sign-up or lead capture.

What stands out is the speed. You can clean 10,000 emails in under three minutes, which is great for large lists or time-sensitive campaigns.

It also offers 99%+ accuracy to help reduce bounces and protect your sender reputation.

Pros

• GDPR & SOC 2 Type II compliant with AES-256 encryption
• 98%+ email verification accuracy (93-97% in tests)
• Bulk verify 1,000,000 emails in ~3-6 hours
• Sync feature for real-time list cleaning
• Free 1,000 verification credits with trial
• Affordable pricing ($0.008/email for 10k)

Cons

• Inconsistent accuracy for catch-all/Microsoft domains
• No built-in lead generation tools
• Slower support response (email-only, no live chat)

4. Snov.io

Skrapp.io provides both lead generation and email verification in one convenient location.

That means you don’t have to switch between tools to build and clean your outreach list.

It offers 98% claimed accuracy, with checks for:

• Syntax errors
• MX records
• SMTP response
• Disposable email detection

You can verify emails in real time or run bulk checks (up to 2,500 emails per batch).

Some users mention the real accuracy is around 90–92%, especially with catch-all domains. Still, it works well for most outbound campaigns.

The platform categorizes your list with clear tags like Valid, Invalid, Catch-All, Spam Trap, Abuse, and Do-Not-Mail, helping you take action with confidence.

Snov.io claims that verified emails from its system won’t bounce, making it a helpful choice for both outreach and list hygiene.

Pros

• GDPR-compliant with third-party security audits
• 98%+ email verification accuracy (93-96% in tests)
• Bulk verify 100,000 emails in ~1-3 hours
• Free Chrome extension for instant verification
• 5,000+ integrations via Zapier
• Free 100 verification credits/month with signup

Cons

• Catch-all domain accuracy can be inconsistent
• Complex UI for beginners due to multi-tool platform
• Limited to 1,000 emails/day per domain verification limit

5. Emailable

If you want an email verifier that’s built for high deliverability, Emailable is the right choice.

It offers three ways to verify emails:

• Bulk email verification
• API for real-time checks
• Widget for form-level verification

The platform checks emails in real time using syntax, domain, and SMTP verification. You also get 250 free credits, which makes it easy to test the tool on a larger list.

Emailable guarantees 99%+ deliverability across most email providers. 

If you’re sending Microsoft-managed emails, you can expect a deliverability rate of around 97%+, which is solid if those domains are part of your list.

All verifications are GDPR-compliant, so your data stays safe and private.

Pros

• SOC 2 Type II and GDPR compliant with robust encryption
• 99% deliverability guarantee (95% in third-party tests)
• Quickly verifies 10,000 emails in ~3 minutes
• 90+ integrations (Mailchimp, Salesforce, HubSpot)
• 250 free verification credits/month with signup
• Anti-greylisting tech for reliable results
• Email Enrichment for names, genders, and SMTP providers

Cons

• Catch-all and Yahoo domain accuracy could improve
• No phone support, only email and live chat (sometimes slow)
• Pricing ($50 for 10k emails) is higher than budget options like MillionVerifier

6. Clearout

Clearout is a solid choice if you want more clarity while verifying your email list.

Instead of just tagging emails as valid or invalid, it scores each one based on how safe it is to send. That’s useful when you’re dealing with catch-all or uncertain emails.

It performs over 20 checks, including:

• Spam trap detection
• Role-based and disposable email checks
• Syntax correction
• Domain and MX record verification

You also get time-saving tools like a LinkedIn Chrome Extension to validate emails while prospecting, and a Google Sheets Add-on to verify directly inside your spreadsheet.

What’s good about it:

• Around 98% accuracy for real-time and bulk checks
• Free tools like LinkedIn email finder and Google Sheets add-on
• GDPR-compliant and keeps your data secure

You can also upload in bulk or use the API. Once your list is clean, just export and start your outreach. So, you don’t have to worry about bounces or spam traps.

Pros

• GDPR, SOC 2 Type II, and ISO 27001 compliant with 256-bit SSL encryption
• 98%+ email verification accuracy
• 90+ integrations (HubSpot, Mailchimp, Google Sheets, WordPress)
• Free 100 verification credits with signup, non-expiring
• JavaScript Widget for real-time form validation

Cons

• Inconsistent accuracy for catch-all/Yahoo domains (~5-11% error rate)
• Limited file management (no folder organization for input/output files)
• Steep learning curve for API and WordPress integrations

7. Usebouncer

Usebouncer is a trusted option for high-accuracy email verification with detailed checks.

Here’s why I’ve kept Use Bouncer  in this list:

• 99.5% accuracy with AI-powered validation
• Deep catch-all verification for Google Workspace and Microsoft Office365 domains
• Free sampling and toxicity checks that help you clean smarter before using credits

It performs over 20 validation checks and can verify millions of emails quickly. You can upload your list, run real-time or bulk checks, and download clean lists in seconds.

Bouncer gives you detailed results categorized as:

• Deliverable – Safe to send
• Undeliverable – Invalid or non-existent
• Accept-All – With bounce likelihood estimates
• Team-Based – Like info@ or support@
• Temporary – Disposable domains
• Unknown – Emails with no clear response (these aren’t charged)

Its Toxicity Check helps you flag risky emails, like spam complainers or addresses from blacklisted domains, scored on a scale of 0 to 5. 

That way, you’re verifying but protecting your sender’s reputation.

Accuracy has been independently reviewed, too, with third-party audits confirming 97% accuracy, making it reliable across different list types.

You also get free sampling tools to test your list quality before using your credits.

Pros

• GDPR & SOC 2 compliant
• 99.5% email verification accuracy
• Bulk verify 250,000 emails at once
• Free sampling to estimate list quality
• Toxicity Check for risky email detection
• Integrates with Mailchimp, HubSpot, and Zapier
• Free plan with 100 verifications

Cons

• Email-only support (no live chat or phone)
• Slower processing for lists over 100k
• Limited data enrichment compared to competitors

8. Hunter.io

I’ve placed Hunter.io high on this list for three reasons:

• First, it gives you over 95% accuracy with step-by-step email checks.
• Second, the database is kept fresh, so you’re not working with old contacts.
• Third, you can find, verify, and send emails without switching tools.

Hunter.io helps you find leads, verify email addresses, and send cold emails, all in one tool.

You can verify emails in bulk or individually. It checks for issues such as incorrect syntax, invalid domains, or catch-all emails.

You can clean up to 10,000 emails at once and download your list as a CSV file.

The Email Finder and Domain Search tools enable you to find emails by company name, job title, or seniority level.

And once your list is ready, you can start your email outreach from the same dashboard.

Pros

• 95%+ email verification accuracy (90 to 95% in real-world tests)
• Bulk verify up to 10,000 emails in around 30 to 60 minutes
• Chrome Extension for quick email finding on websites
• Google Sheets add-on for easier workflows
• 50+ integrations including HubSpot, Salesforce, and Zapier
• Free plan with 50 verifications per month

Cons

• Accuracy can drop for catch-all and Yahoo emails
• No phone support, only email and chat with varying response times
• Lacks some campaign tools like A/B testing or email warm-up

9. MillionVerifier

MillionVerifier is a budget-friendly email verification tool that works well for bulk cleaning.

Here’s what makes it a good pick:

• 99%+ claimed accuracy for large lists
• Credits never expire, so you can use them whenever you need
• 18+ integrations with tools like Mailchimp, HubSpot, and ActiveCampaign

Runs 15+ checks, including syntax, domain, MX records, SMTP, catch-all, and disposable filters.

You get clear results broken down as:

• Deliverable – Safe to send
• Undeliverable – Invalid or doesn’t exist
• Accept-All – Risky domains
• Team-Based – Emails like info@ or support@
• Disposable – Temporary addresses
• Unknown – Not confirmed

Most users report an accuracy rate of around 97% for bulk lists. Some have flagged issues with Yahoo and catch-all emails, but it works well overall.

One helpful feature is EverClean. It automatically re-verifies your list every day through connected tools. MillionVerifier is also GDPR-compliant and uses SSL encryption to protect your data.

You can verify up to 1 million emails in under 6 hours and download the cleaned list in CSV or Excel.

Pros

• 99%+ email verification accuracy
• GDPR & EU data protection compliant
• Non-expiring credits
• Bulk verify up to 1M emails
• 18+ ESP integrations
• Affordable ($389 for 1M emails)
• Comes with a free EmailAcademy PRO account

Cons

• Accuracy may drop with Yahoo and catch-all domains
• No 24/7 support
• Dashboard feels a bit outdated compared to others like Bouncer

10. MailerCheck

MailerCheck is more than just an email verifier.

It helps you check inbox placement and clean your list the right way. This is something most tools skip, but it can impact deliverability.

You achieve approximately 98% accuracy and can verify emails in real-time or upload them in bulk.

It runs key checks like:

• Syntax validation
• Domain and MX record checks
• SMTP response
• Disposable email filtering

Your results are categorized as:

• Deliverable – Safe to send
• Undeliverable – Invalid or inactive
• Accept-All – Risky domains that accept all emails
• Team-Based – Addresses like contact@ or support@
• Disposable – Temporary or one-time emails
• Unknown – No clear server response

Some users report small issues with Yahoo domains in bulk, so keep that in mind if that’s your audience.

What makes MailerCheck stand out is Inbox Placement Testing.

It shows if your email is likely to land in the inbox, promotions tab, or spam—so you can adjust before sending.

Other helpful features include:

• Spam score analysis to spot risky content
• DMARC reports to prevent spoofing and domain misuse

MailerCheck is also GDPR and SOC 2 compliant, and works with tools like MailerLite, Zapier, and Mailchimp.

Pros

• GDPR & SOC 2 compliant
• 98%+ email verification accuracy
• Fast bulk verification
• Inbox placement testing
• DMARC reporting for domain safety
• integrates with MailerLite, Mailchimp, and Zapier
• Free plan with 100 verifications/month

Cons

• Occasional issues with Yahoo email checks
• Lacks advanced data enrichment
• No phone support, only email and chat

11. Skrapp.io

Skrapp.io provides both lead generation and email verification in one convenient location.

That means you don’t have to switch between tools to build and clean your outreach list.

It offers 98% claimed accuracy, with checks for:

• Syntax errors
• MX records
• SMTP response
• Disposable email detection

You can verify emails in real time or run bulk checks (up to 2,500 emails per batch).

Some users mention the real accuracy is around 90–92%, especially with catch-all domains. Still, it works well for most outbound campaigns.

Here’s what it checks:

• Deliverable – Safe to send
• Undeliverable – Invalid or inactive
• Accept-All – With bounce risk indicators
• Team-Based – Like info@ or sales@
• Disposable – Temporary or one-time emails
• Unknown – Inconclusive

What sets Skrapp.io apart is its LinkedIn Chrome Extension, which lets you pull verified emails straight from LinkedIn or Sales Navigator.

You also get access to:

• 200M+ business profiles
• 20M+ company records
• Domain Search and advanced filters by role, company, and industry

It’s GDPR-compliant and works with tools like HubSpot and Zapier, so you can sync verified leads straight into your CRM.

Pros

• GDPR-compliant with secure data handling
• 98% email verification accuracy
• Bulk verify 2,500 emails per operation
• Chrome Extension for LinkedIn email extraction
• Integrates with HubSpot, Salesforce, and Zapier
• Free plan with 200 verification credits/month
• Non-expiring credits on paid plans

Cons

• Inconsistent accuracy for catch-all/Yahoo emails
• Customer support can be slow (email-only)
• Limited advanced features compared to enterprise tools

Say Goodbye to Bounces, Choose the Right Email Verifier.

If you’re serious about cold emailing, selecting the right email verification tool is essential.

Look for something that offers:

• High accuracy (95% or more)
• Real-time and bulk verification
• Catch-all, spam trap, and disposable email detection
• Clean and simple export options

In that sense, Saleshandy is a solid option. It verifies your list and also helps you send emails that land in the inbox.

Still deciding?

Start with 50 free email verifications and see how it works for your list.

FAQs About Email Verification Tools

1. What’s the difference between basic and advanced email verification?

Basic verification checks email syntax and domain existence. Advanced tools go further — validating MX records, SMTP responses, spam traps, disposable emails, catch-all domains, and more. If you’re running cold email campaigns, advanced checks are essential for protecting deliverability.

2. Is email verification the same as improving deliverability?

Not exactly. Email verification helps you avoid bounces, but that’s just one part of deliverability. Factors such as sender reputation, warm-up, content quality, sending habits, and engagement also play a role. Verification is just the first step in the complete process.

3. Can I verify catch-all emails reliably?

Not always. Catch-all domains accept every email, making it difficult to determine if the address is legitimate or not. Some tools utilize scoring or AI to estimate risk, but no tool can guarantee 100% accuracy for catch-all emails.

4. Do I still need email verification if I bought a lead list from a trusted source?

Yes. Even good lists can contain outdated, role-based, or risky emails. Verifying helps you avoid hard bounces and keeps your domain from being flagged. Always verify before sending.

5. How many emails can I verify in bulk, and how fast is the process?

This depends on the tool. Some platforms verify 100,000+ emails in under an hour. Most also support CSV uploads, with options to filter, segment, and export clean lists easily.

6. Does verification work for Gmail or Outlook addresses?

Yes, but with limits. Gmail, Outlook, and Yahoo sometimes block SMTP verification attempts. Good tools mark these as “unknown” (and don’t charge you) or use risk scoring to guide your decision.