The fix? Email verification tools that do the hard work for you.
We’ve rounded up fifteen of the very best email verification tools on the market for you today. Their pros, cons, pricing, and other considerations to help you choose the most accurate, fastest, and easiest-to-use tool in the market.
What is an email verification tool?
An email verification tool checks if an email address is real and safe to send messages to. It spots emails that could hurt your sender reputation, such as:
- Outdated emails that no longer exist
- Addresses with typos
- Catch-all addresses
- Spam traps
- Duplicate emails that already exist in your email lists
In short, it tells you if it’s worth hitting that “send” button.
Best email verification tools in 2025: 15 picks
On the surface, all validation tools offer similar features and pricing. But the devil is in the details, which is why we did some deep research to find out:
- their features,
- how fast each tool works,
- what it costs,
- and what real users say about each tool.
We grouped the tools in different categories to help you make the best choice for your unique use case.
#1 Bouncer – the best overall email verification tool
Bouncer is the #1 all-in-one email verification solution for businesses of all sizes. Whether you’re running bulk campaigns, collecting leads through forms, or integrating with your CRM, Bouncer covers it all.
Bouncer provides the perfect mix of validation accuracy, ease of use (even for non-technical users), verification speed, and integrations with your favorite (email) marketing tools.
Features
- Bulk and quick email verification – validate up to 250,000 emails in one go with real-time bounce estimates and rich result tags.
- Email Verification API – add email validation to any product or system with developer-loved endpoints and instant response times.
- Bouncer Shield – stop bad emails at the door with form-level real-time checks for typos, spam traps, or shady signups.
- Toxicity check – find risky emails linked to blacklists, spam complaints, or shady history, scored from 0–5.
- Deliverability kit – test inbox placement, check blocklists, and fix SPF/DKIM/DMARC before hitting the send button.
- Free sampling – get bounce estimates from a random sample of your list before using credits.
- Catch-all deep check – see what’s really behind tricky catch-all domains, even those hosted on Google or Microsoft.
- Data enrichment – turn basic email addresses into leads by adding business info automatically.
Speed
Bouncer validates up to 200,000 emails per hour per customer. It’s lightning fast with both real-time and batch verification modes. There are also no downtimes, ever.
Pricing
Bouncer’s pricing is transparent and easy to understand: pay as you go or monthly. Credits never expire, and there’s no charge for duplicates or unknowns. Plans start at $8 for 1,000 emails, with discounts as you scale.
User reviews
Users love how fast and dead-simple Bouncer is. They state that the dashboard is intuitive, the API is rock-solid, and customer support gets plenty of praise. Bouncer has a 4.8/5 rating from over 200 reviews, indicating a consistently high customer experience.
Best professional email checkers for small businesses
Small businesses need affordable pricing, a great core feature set and the ability to scale up or down based on the situation. These are some of our top picks.
#2 ZeroBounce
ZeroBounce is an email verification tool with a seemingly low price point, which makes it attractive to small businesses and those that only need a casual email list cleanup.
It removes invalid, outdated, or fake emails, so you don’t waste time or damage your sender reputation.
Key features:
- Email validation – ZeroBounce claim 99% accuracy, though third-party tests show about 90%.
- Catch-all and disposable detection – it spots throwaway addresses, but its catch-all accuracy is lower (around 58%).
- Spam trap and complainer detection – helps filter out risky addresses that might get you flagged in the future.
- Role-based and duplicate removal – cuts out generic and repeated addresses.
- Domain, MX, and SMTP checks – confirms that domains and servers actually exist and respond.
- Greylisted and AOL account checks – handles tricky addresses that might cause sender reputation issues.
- API access – lets you plug ZeroBounce into your own system with a bit of code.
- Email scrubbing – removes unwanted or risky addresses automatically, including honeypots.
Speed
Speed is where ZeroBounce loses a few points. Verifying 10,000 emails takes about 110 minutes, which is a long wait if you’re on a tight campaign schedule.
With large lists, delays can turn into missed chances or worse, emails sent to potentially troublesome addresses. So while it gets the job done, it’s not very fast.
Pricing
ZeroBounce offers two main pricing options: pay-as-you-go and monthly plans.
The cheapest package starts at $20 for 2,000 emails (that’s $0.01 per email verification). If you go for the monthly plan, it begins at $18 for the same amount.
Monthly credits roll over, which is nice, but you’re stuck choosing between preset amounts, like 2,000 or 5,000 emails.
Need to verify 5,100 addresses? You’re paying for 6,000. They also have a Deliverability Kit, with a free version and paid plans from $49 to $249, depending on how many warmups, tests, and monitors you want.
User reviews
Plenty of people like ZeroBounce. Users mention helpful support, clean results, and fair pricing. Users say the dashboard is smooth and the download options are easy to handle.
But not everyone is excited about using ZeroBounce. Some struggled with the setup. Others were frustrated by delays or having to break large files into smaller parts. A few even got blocked by email tools after uploading lists they thought were cleaned.
#3 EmailListVerify (Email List Verify)
EmailListVerify helps clean up your email lists with all the core features of most validation tools. Their sales pitch is extreme verification speed at a low cost, with a high regard for your privacy.
Features
- Domain & SMTP validation – checks if an email’s domain and server actually work.
- Spam trap checker – spots addresses that could damage your sender reputation.
- Disposable email cleaner – removes throwaway emails that won’t lead to real engagement.
- Catch-all domain checker – helps figure out if you have generic inboxes like info@ in your lists.
- Syntax error validator – flags emails with missing “@” signs or other common mistakes and typos.
- Hard bounce checker – filters out addresses that always bounce.
- MTA validator – confirms that mail servers are active and ready.
- Duplicate remover – deletes repeated emails to avoid double trouble.
- Email health checker – gives a quick view of your list quality before you hit send.
Speed
EmailListVerify claims it can process over 100,000 emails per hour. But when tested, it needed about 97 minutes to check 10,000 emails.
This isn’t all that bad, but it’s not the fastest either, and it’s definitely not according to their promises. For big batches, it can still save hours compared to doing things by hand, though speed depends a lot on your list size.
Pricing
You can pay as you go or choose a monthly plan.
The pay-as-you-go option starts around $3,290 for 10 million emails. This sounds like a good deal, but it’s a big bite for smaller businesses. The monthly plans look more affordable, but still leave some questions, like what exactly you get and if there’s a free trial. There is a 30-day money-back promise, but some extra clarity wouldn’t hurt.
User reviews
People love the support. It’s fast, friendly, and works around the clock. The tool is also known for effectively spotting spam traps and fake emails.
But not everyone’s thrilled. Some say it’s slow at times and not always accurate. Others wish the pricing and feature details were easier to understand. So, if support is your top concern, this tool might hit the mark. But for performance? It’s more of a mixed bag.
#4 MailerCheck
MailerCheck is an email verification tool that checks your email list, points out problem addresses, and tells you if your messages are likely to land in inboxes or vanish into spam folders.
You can verify emails one by one, in bulk, or in real time with their API.
Features
- Email verification – spot and remove invalid email addresses before you send out anything.
- Inbox placement test – know where your email will land (inbox, spam, or nowhere) before you send it.
- Content analysis – checks your emails for spam trigger words, broken links, and blocklist triggers.
- Real-time API checks – validates email addresses during sign-up, so bad contacts never sneak in.
- Email insights – breaks down why each email is risky and what to do about it.
- Domain monitoring – tracks domain activity and sends alerts if anything shady happens.
- Blocklist alerts – get notified fast if your domain or IP ends up on a blocklist.
- Health reports – see the overall quality of your email list and make smarter decisions.
Speed
Users say MailerCheck can verify lists within minutes, although we couldn’t find specific information about the actual timeframe. It’s a strong point for users who don’t want to pause a campaign for hours. Real-time checks also happen instantly as users type, so your list stays clean from the start.
Pricing
Pricing is simple: $0.01 per verified email.
You can go pay-as-you-go or grab a monthly plan if you clean lists often. Every new account comes with 200 free credits. Inbox placement and content checks cost 200 credits per run, so you’ll want to use them wisely.
User reviews
MailerCheck gets good feedback for its clean interface, quick setup, and fast results. Users love how well it works with MailerLite and how easy it is for beginners to figure out.
But it’s not all perfect. Some wish it had more detailed filters and smarter automation. Others say it marks too many emails as invalid or leaves them unsure how the tool really works. In short? It’s user-friendly, but not always feature-rich.
Best email verification software for agencies and freelancers
Agencies and freelancers have varying needs for verification. Sometimes, you’ll need to verify 200 emails per month and other times, a client may need to verify 20,000 in a single day. They’ll need highly flexible verification tools that are fast, accurate and easy to use.
#5 Emailable
If you’re an agency or freelancer juggling email lists, Emailable is one of the best choices in the market.
Besides accurate email verification, it has inbox warmup and client management tools, making it suitable for agencies or freelancers working for their clients.
Features
- Bulk email verification – upload your list and clean it in one go.
- Misspelled domain correction – spots and fixes typos in domains like gmial.com or yaho.com before they cause bounces.
- Role-based and tagged email detection – flags generic or tagged addresses (like support@ or john+sales@) so you can avoid non-personal contacts.
- MX record and SMTP checks – confirms if emails are actually reachable through valid servers.
- Anti-greylisting tech – gets past temporary server rejections and delivers more accurate results.
- Real-time API and widget – run the email validation process live at your sign-up forms.
- Credit sharing – share credits across team members without jumping through hoops.
- Deliverability tools – test inbox placement and get insights to tweak your content before sending.
Speed
Most users say the email verification process is quick, even when checking large lists. You can upload thousands of contacts and get results in minutes.
The API is also responsive, which helps if you’re adding it to a form or using it inside your app. Still, a few users did say the workflow can lag at times, especially when switching tasks or running back-to-back checks.
Pricing
You get 250 free credits, and credits never expire, which sounds good. The pay-as-you-go plan starts at $60 for 10,000 emails. Monthly subscriptions are cheaper per email, but you’ll pay more upfront.
There is also a separate Deliverability plan, starting at $149 per month. While Emailable says its pricing is affordable, not everyone agrees, especially if you’re working with a tight budget or a smaller list.
User reviews
The reviews are mostly positive. People love the bulk email verification, API speed, and integration with Mailchimp. Freelancers and small businesses say it saves them time and helps avoid invalid addresses.
However, some users felt burned after losing credits with no warning. Others said the UI could use some polish or that the price doesn’t match the value. So, while it works well for many, it may not be the best fit for everyone.
#6 NeverBounce
If you’re sending emails for clients and can’t afford bounce-back drama, NeverBounce might save you. It’s built for agencies, freelancers, and growing teams that need to clean large lists without second-guessing the results.
Trusted by brands like Uber and Dell, NeverBounce is also made for serious senders, but it’s easy enough to use without an IT team.
Features
- Bulk email list cleaning – upload your list and remove typos, spam traps, and outdated contacts.
- Real-time email verification – check emails as people type them in – great for forms and signup pages.
- API integration – plug NeverBounce into your system and verify emails automatically in the background.
- Syntax and domain checks – confirms that every address is properly formatted and connected to a working domain.
- Live activity status – filters emails based on whether the address is currently active.
- Pay-as-you-go billing – you only pay for what you use, which helps with unpredictable project sizes.
Speed
NeverBounce can verify 10,000 emails in about 50 minutes. It’s not lightning-fast, but it’s steady enough for most agencies and freelancers. If your email list isn’t massive, you’ll likely get your results in under an hour.
However, during busy times or when uploading large batches, a few users mentioned waiting and needing to refresh the page.
Pricing
NeverBounce skips subscriptions and sticks with pay-as-you-go pricing. You’ll pay around $50 for 10,000 emails, but the more you upload, the cheaper it gets, down to $0.0025 per email for over a million entries.
There’s also monthly invoicing if you need it. It’s flexible, but many say it’s more expensive than other email marketing tools, especially if you clean lists often.
User reviews
Reviews are a mixed bag. On one hand, people love the UI, easy setup, and bulk email verification tools that save time. It works well with email marketing platforms like HubSpot, and users praise its real-time checks.
On the other hand, customer support gets called out. Some say help is slow or unhelpful during key moments. A few also mention Yahoo addresses can be hit-or-miss, and pricing feels steep. So while NeverBounce works well, it may not always be the best deal.
#7 DeBounce
While it’s primarily built for marketers and sales teams, DeBounce works well for agencies and freelancers that need to handle a variety of clients and verification needs.
With lead enrichment features, APIs, and numerous integrations, it can fit into any workflow and improve not just your accuracy, but your sales processes as well.
Features
- Invalid email detection – kicks out addresses that don’t exist or can’t receive emails.
- Spam trap & abuse checker – catches risky addresses before they mess with your sender reputation.
- Duplicate email remover – finds and removes duplicates to keep your list clean.
- Deactivated email filter – detects emails that once worked but now lead nowhere.
- Catch-all domain checker – flags domains that accept everything, even junk.
- Real-time API – instantly checks emails as users type them on your site or form.
- Disposable email filter – clears out temporary signups that won’t convert.
- Syntax and DNS checks – scans for bad formatting and fake domains during the email verification process.
Speed
DeBounce can take up to 950 minutes to check 10,000 emails. That’s a long coffee break. It works, eventually. If you’ve got a deadline or a big campaign to launch, the lag might leave you hanging.
For smaller batches, though, you’ll likely see results sooner. The real-time API runs fast enough for day-to-day lead capture.
Pricing
DeBounce starts at $10 for 5,000 emails, just $0.002 per verification. You can verify up to 5 million addresses, and the more you purchase, the lower the cost per email.
Credits never expire, a rare feature in email marketing tools. It’s one of the cheapest email verification software options around, but that low price may cost you in other areas, like accuracy or speed.
User reviews
Reviews show some users are thrilled with the value for money. They say DeBounce is easy to use, the UI is clean, and results are reliable, most of the time.
Others say it’s not perfect. One user reported a major hiccup where thousands of leads were wrongly marked as opted-out, slowing down sales for weeks. On top of that, the support team didn’t respond.
Smaller issues include weak integration options and the short 7-day window to download your results. Still, many freelancers and small teams stick with it because it gets the job done… eventually.
Best for enterprises and SaaS platforms
The bigger the company, the more comprehensive its needs for clean emails. Large businesses often send out hundreds of thousands of emails at once, and a 1% error can lead to major consequences in bounce rates and sender reputations. The tools below handle large volumes of verifications well.
#8 Kickbox
If you’re running a SaaS platform or scaling email campaigns at enterprise level, Kickbox is one of the best choices in the market.
Besides high accuracy, Kickbox pride themselves on their ethical cleaning practices, since they don’t clean purchased or scraped email lists.
Features
- Drag-and-drop email list verification – upload your list and let the cleaning begin.
- Real-time API validation – check new signups as they come in, straight from your app or site.
- Sendex™ scoring system – ranks the quality of each email address so you know what’s worth keeping.
- Role-based and disposable detection – flags emails like support@ or temp accounts that rarely engage.
- Catch-all domain recognition – spots domains that accept everything, even when the inbox doesn’t exist.
- ESP and CRM integrations – plug into your favorite marketing platforms like Mailchimp, HubSpot, or Salesforce.
Speed
Kickbox handles large lists without choking and returns results rather quickly. Users mention getting the job done in “minutes”. While the exact time is unknown, users seem to be satisfied.
Pricing
You get 100 free verifications to test things out, no credit card needed. After that, pricing starts at $5 for 500 verifications and scales based on the number of emails you want to check.
The more you verify, the lower your cost per email. For example, 2,500 verifications cost $25, while 5000 verifications cost not $50 but $40. Plans range up to $4,000 per month, which can be beneficial for large enterprises that manage millions of contacts. It’s flexible enough for growth, but some say it lands on the pricey side if you run checks often.
User reviews
Kickbox gets points for being fast, accurate, and easy to use. The interface is a favorite: simple enough for beginners, sharp enough for teams that live in the dashboard.
People like the accuracy, too, though there’s some confusion when a large chunk of a list comes back as “risky.” Support, however, is where things slip. Several users say it’s hard to get help when something breaks. So yes, it’s reliable until you really need a human being to troubleshoot things.
#9 BriteVerify
For SaaS platforms and enterprise teams sending emails at scale, BriteVerify steps in. It’s built for those who need to verify large volumes of email addresses across platforms like CRMs, ESPs, or even spreadsheets.
BriteVerify handles basic email checks, while the real power, such as spam trap detection or inbox monitoring, is available only in other BriteVerify tools.
Features
- Bulk email verification – upload thousands of emails at once and remove fake or inactive contacts.
- Syntax and format checks – catches typos, missing characters, or other bad formatting mistakes.
- Spam trap and disposable email filtering – identifies risky addresses that can tank your sender reputation.
- Real-time email checker – validates addresses as they’re entered through your website or app.
- ESP integrations – works with popular email marketing platforms like Salesforce, Mailchimp, and more.
- Cross-product add-ons – pair with other Validity tools (like Everest) for extra features (but you’ll need a bigger budget).
Speed
Based on our findings, BriteVerify can process 10,000 emails within 50 minutes. It manages bulk lists fairly quickly, provided your data is already clean. But if your list is full of duplicates or formatting errors, prep time will slow things down.
Pricing
You’ll pay $40 for 5,000 emails (that’s $0.008 each). It gets cheaper with volume, but only slightly. For 250,000 verifications, the rate drops to $0.005 each. If you’re working with huge lists, the price can climb fast, especially compared to other email verification service providers.
They also have subscription plans, but you must contact sales for the price.
User reviews
Most users like the easy integration and bulk processing power. It’s particularly helpful when you already use other Validity products. But some complaints keep popping up, like missed spam traps, needing to verify the same list twice, and customer support that’s hit or miss.
Users also say it’s one of the most expensive options on the market, and the real value only shows up when you buy into the whole Validity suite.
#10 EmailMarker
If price is your main concern, EmailMarker is the logical choice as you can verify 1,000 emails for just $3. On top of price, it also offers solid accuracy and speed thanks to its real-time verification API.
Features
- Syntax checker – spots broken email formats before they break your campaign.
- Duplicate remover – kicks out repeated addresses so you’re not sending the same email twice.
- Spam trap control – flags hidden traps that could hurt your sender reputation.
- Domain validation – removes addresses linked to inactive or parked domains.
- Mailbox verification – checks if an email inbox can actually receive your message.
- Real-time API – plug it into your app or website to check emails as they come in.
Speed
Not bad for the price. In tests, EmailMarker cleaned up 10,000 emails in around 150 minutes. That’s about half the time it takes most other tools in this price range. It won’t blow your socks off with speed, but for many businesses, it’s quick enough to keep things moving.
Pricing
EmailMarker starts at just $3 for 1,000 verifications. You’ll pay $21 for 10,000 verifications, or $589 for a million. Credits never expire, so there’s no rush to use them. Compared to other tools, it’s one of the cheapest options around.
User reviews
Users love the low cost, basic features, and no-nonsense pricing. It’s ranked high for affordability and turnaround time, but accuracy is where things get shaky. In audits, EmailMarker scored just 74% for accuracy, far below the top-tier players.
Some reviews also mention weak spam trap detection and limited integrations, specifically with Mailchimp. Still, if you need a budget-friendly cleaner that works quickly, it might be worth a try.
Best all-in-one email tools and email list verifiers
If verification is just one of the items on your shopping list, you’re probably looking at tools with a broader feature set. The entries below combine verification with cold email generation, inbox warmup, list management, and others. These tools are ideal for organizations that want to get the most value for their money.
#11 Woodpecker
Woodpecker is a cold email tool loved by agencies, startups and enterprises because of its variety of features.
It’s primarily a cold email tool with email verification, but it adds much more value: email inbox warmup, list segmentation, A/B tests, detailed analytics, sequences with triggers and tons of other features.
Features
- Built-in email verification – powered by Bouncer, it checks every email address automatically before sending.
- Email warm-up (free) – gradually builds trust for new inboxes to dodge spam folders.
- Branching campaigns – create smart follow-ups based on whether someone opens, replies, or ignores.
- Adaptive sending – randomized sending patterns help you stay human and avoid filters.
- Lead Finder credits – find new contacts directly inside the platform (100 free per month).
- Agency panel – manage clients, campaigns, stats, and billing in one place (paid add-on).
- Inbox rotation – use multiple email accounts to spread volume and stay safe.
- Free catch-all domain detection – skip risky catch-all addresses before your emails bounce.
Speed
Woodpecker runs checks in real-time: no manual uploads, no delays. Hit “Send,” and the system verifies your emails instantly with Bouncer before they leave your outbox.
Pricing
Woodpecker starts at $0/month with 600 emails and 50 contacted prospects. Need more? The Starter plan kicks off at $29/month for 6,000 emails and 500 prospects. Larger teams can scale up to the Growth, Scale, or MAX tiers, with MAX offering unlimited everything at $6,666/month.
User reviews
Users enjoy how Woodpecker “just works.” The built-in verification, free warm-ups, and smart campaigns get special praise, along with the team’s support. Many say it saves time and delivers real results, especially when paired with tools like LinkedIn and CRMs.
However, some users wish the Lead Finder had more contacts for certain regions (like Switzerland). And others note the time zone gap with Poland-based support. However, for cold email, Woodpecker has a great all-around package.
#12 Hunter
Hunter.io has become the industry leader for finding email addresses. It has a large feature set, but it’s best known for its powerful email finder. You can add the main details of your leads, and Hunter fills the gaps, giving you accurate, verified email addresses you can use for outreach.
Features
- Email Finder – type in a name and company, and Hunter digs out possible business email addresses.
- Email Verifier – checks if an email is real, reachable, and not likely to bounce.
- Confidence score – tells you how safe it is to send an email to a specific address.
- Bulk tasks – upload a full list for bulk mail verification or discovery in one go.
- SMTP and MX record checks – looks behind the curtain to spot dead or fake domains.
- Campaigns tool – send cold emails right from the platform, with basic tracking and follow-ups.
- Google Sheets add-on – use Hunter tools without leaving your spreadsheet.
- API & CRM integrations – connects to 5,000+ destinations through Zapier and direct syncs.
Speed
Hunter’s speed depends on what you’re doing. Single checks and small bulk tasks are done quickly and are great for quick turnarounds. You get results in seconds, with no long loading bars. For bigger lists, the bulk tool works in the background while you move on to the next task.
Pricing
Hunter has a free plan if you’re just testing the waters: 25 searches and 50 verifications per month. Paid plans start at $34 per month and range up to $209 per month (or more with enterprise options). Higher plans give you more searches, verifications, and campaign power.
Extra verifications cost around $2.09–3.40 per 100 credits, depending on the plan. For solo users or small teams, it’s a fair price, but heavy users might hit the limit fast.
User reviews
Users like how quick and easy Hunter is. Reviews often mention how fast it finds contacts and verifies them. Two clicks, and done. It’s especially popular with users doing email outreach and lead prospecting.
But there’s a catch: some users report that up to 20% of emails still bounce, and filtering by job title or location isn’t available. Others wish the tool had deeper integrations and more advanced automation. Still, for a no-fuss, all-in-one tool, it holds its ground.
#13 Apollo.io
Apollo helps you find lead data, verifies it in real time and then lets you get in touch with those contacts through AI-powered emails.
Unlike basic verification tools, Apollo doesn’t get stuck on catch-all domains. Instead, it uses real inbox activity, bounce tracking, and its own data network to predict if your email will actually land in the primary inbox.
Features
- 7-step mail verification – goes beyond syntax and domain checks to catch fake or inactive emails.
- Catch-all domain filtering – Apollo can tell if an address is active, even when third-party tools fail.
- Email status filter – lets you include or exclude “risky” emails in one click.
- Chrome extension – prospects straight from LinkedIn, Salesforce, or anywhere on the web.
- Intent data & enrichment – find leads who are looking for what you sell, not just “in the market.”
- Sequence automation – send smarter emails, stop on replies, and route leads without lifting a finger.
- Built-in dialer – call your prospects directly without switching tools.
Speed
Apollo’s email checks happen in real time – no uploading files, no long waits. It can even detect a bounced email across its entire network and adjust accordingly. And if the system spots a fake? You get the credit back instantly. As for the exact time verification takes, sadly, we couldn’t find specific information.
Pricing
Apollo’s free plan gives you 1,200 credits a year, which is decent for testing the waters. Paid plans start at $49/month (billed annually) and go up depending on how deep you want to go with automation, AI features, and call tools. If you’re sending emails every day, the credits add up fast. So knowing what your team needs is key.
User reviews
Users like how Apollo packs search, engagement, and verification into one tool and still keeps things snappy. The email filtering is smart, and the platform’s LinkedIn integration gets a lot of praise.
On the flip side, the learning curve is real, especially for teams new to sales automation. Some also report outdated data or slow speeds during peak hours, but most agree it still delivers a strong ROI once you get the hang of it.
Best email validation free tools & pay-as-you-go options
If you’re not sure you even need to verify your lists, it’s best to test the waters with a free tool. By going through a small sample of your email list, you’ll hopefully see how badly your lists need a thorough clean.
#14 Mailfloss
Mailfloss are proud about their automatic daily cleanup, which is excellent if you constantly add new addresses and don’t want to manually validate emails on the regular. They also have a unique typo fixer feature, which automatically fixes things such as “gmial” to “gmail” on the go.
Features
- Automatic daily cleanup – keeps your email list fresh without manual work.
- Pay-as-you-go credits – great for one-off cleanups if you’re not ready for a subscription.
- Real-time API – catch invalid emails before they ever enter your CRM.
- Typo fixer – spots and corrects common email typos that kill deliverability.
- ESP integrations – connects with over 35+ platforms including HubSpot, Mailchimp, and Klaviyo.
- Decay protection – flags older emails that might’ve gone stale over time.
- Whitelist/Blacklist filters – keep control over which emails stay or go.
Speed
Mailfloss users can clean up 100,000 contacts in one hour.
Pricing
You can start with a free 7-day trial if your email service provider is supported. After that, plans start at $29/month or $40 for 10,000 prepaid credits – perfect for small lists or one-time cleanups. The best part? Prepaid credits never expire, so you don’t lose money if you skip a month.
User reviews
Users are fond of the set-it-and-forget-it flow. Mailfloss runs in the background and keeps bounce rates near zero. Setup takes under 15 minutes, and support replies fast if something’s unclear.
On the flip side, some folks say the dashboard takes time to learn, and credit-only users get fewer features. Still, for many, Mailfloss is the no-brainer they didn’t know they needed.
#15 Verifalia
Verifalia uses AI to perform over 30 different validation checks for every email address, resulting in extremely high accuracy. They’re also known for their support for international addresses, making it a solid choice for anyone doing business in the global market.
Features
- Bulk email verification – clean lists of up to 40 million addresses in a single batch.
- Syntax and domain check – flags emails with typos, bad formatting, or fake domains.
- Disposable email detection – spots throwaway accounts from services like Mailinator or YOPmail.
- Spam trap detection – finds dangerous addresses that could ruin your reputation.
- Catch-all server check – identifies domains that accept all emails (but may still bounce).
- Real-time API – blocks bad emails before they enter your CRM, signup form, or funnel.
- Unicode support – handles non-Latin alphabets like Arabic, Chinese, or Cyrillic.
Speed
Verifalia is pretty fast. But only if you’re paying for it. On a standard plan, 10,000 emails take about 48 minutes to check. Higher tiers like “Extreme Quality” are slower but more thorough, so you trade speed for detail.
Pricing
Verifalia’s pricing runs on daily credits, and each quality level eats up more. You can start for free with 25 daily credits, but unused credits expire each night.
Plans go from $9 to $499/month, and you can also buy extra credits that don’t expire, but they cost more. It’s easy to underestimate how fast your credits get eaten up, especially if you switch to higher-quality checks.
User reviews
Most users are happy with the results. Verifalia is reliable, accurate, and handles big lists well. The real-time API and bulk cleaning both get praise. On the downside, the pricing model confuses some users, especially when credits disappear overnight. A few also say the dashboard isn’t the easiest to navigate at first, but once set up, it runs without much fuss.
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