European Email Verification Tools

#1 EmailListVerify

Bratislava, Slovakia Prices in EUR; minimum purchase 1,000 credits; 10,000 credits EUR 27 one-off (EUR 0.0027 per address); the same 10,000 credits on a monthly plan EUR 25; 100 free verifications Demo on request

Best for: Marketers who clean a list before each campaign and want euro prices

• Operating company. EmailListVerify s. r. o.
• Jurisdiction. EU (Slovakia)
• Where the data sits. not stated on the pages we read; Amazon Web Services is named in the privacy policy
• Source code. Closed source
• Replaces. ZeroBounce

EmailListVerify is a bulk verifier run by EmailListVerify s. r. o. in Bratislava. You upload a TXT, CSV or XLSX file, wait a few minutes and receive a result that flags spam traps, hard bounces, disposable addresses and catch-all domains. A new account gets 100 free verifications, which is enough to judge the output on a real sample.

The Slovak company publishes its company number and VAT ID, and its terms fall under Slovak law with the courts of Bratislava. Ten thousand credits cost EUR 27 once, and the vendor says the service costs half of comparable tools, a comparison we did not test. The pages name Amazon Web Services as a processor but no region, and no written accuracy guarantee appeared.

Standout feature. EmailListVerify prices one-off bulk credits in euros with a published per-address rate of EUR 0.0027.

#2 Bouncer

Wroclaw, Poland Pay as you go in USD from 1,000 credits at USD 8; 5,000 for USD 35; 10,000 for USD 60; 50,000 for USD 250; 100,000 for USD 400; 1,000,000 for USD 2,000; credits never expire; monthly subscription also offered Demo on request

Best for: Teams that want a Polish verifier with a stated EU server location and an API for forms

• Operating company. Bouncer Sp. z o.o. (LTD)
• Jurisdiction. EU (Poland)
• Where the data sits. Frankfurt, Germany (per the privacy policy)
• Source code. Closed source
• Replaces. ZeroBounce

Bouncer is a verification service from Bouncer Sp. z o.o. in Wroclaw, and its privacy policy states that the servers are in Frankfurt. The product menu goes beyond bulk checks: Shield screens sign-up forms, AutoClean works on CRMs, and a deliverability kit covers inbox placement and blocklists. An MCP server is listed too.

Credits are sold pay as you go in dollars, from USD 8 for 1,000 to USD 2,000 for 1,000,000, and they do not expire. The Polish company is data controller for people in the EEA under Polish law. Its terms carry a 2018 date and its privacy policy a 2019 date, and the wording of its accuracy guarantee was not read.

Standout feature. Bouncer is the only verifier here that names Frankfurt as its server location and also sells a form-protection API.

#3 Verifalia

Padova, Italy Pay-as-you-go credit packs that never expire (1 credit = 1 standard verification) and monthly, quarterly (save 5%) or yearly (save 10%) plans; billing currencies include EUR, GBP and CHF; amounts not shown in the text we read Demo on request

Best for: Teams that want an Italian vendor with a published DPA and SLA

• Operating company. Cobisi Research SRL (trading as Verifalia)
• Jurisdiction. EU (Italy)
• Where the data sits. not stated on the pages we read
• Source code. Closed source
• Replaces. ZeroBounce

Verifalia is the trading name of Cobisi Research SRL in Padova, Italy, and its site has carried a copyright line since 2005. It cleans lists, verifies addresses in real time through an API and offers a widget for sign-up forms. The vendor reports 99% accuracy and more than 100,000 customers, both figures we could not check.

Contract documents are the draw: the terms of service incorporate a DPA and an SLA, and the privacy policy names a data protection officer contact. Credits never expire and plans can be billed monthly, quarterly or yearly in many currencies, EUR included. The footer and legal pages disagree on address and VAT ID, so confirm the invoicing entity.

Standout feature. Verifalia is the only verifier here whose terms incorporate both a Data Processing Addendum and a Service Level Agreement.

#4 Byteplant Email-Validator

Neuendettelsau, Germany 1,000 free email checks; one-off and monthly options with a EUR or USD switch; credits never expire; money-back guarantee; amounts not shown in the text we read Demo on request

Best for: German-speaking companies that want a local GmbH with phone support

• Operating company. Byteplant GmbH
• Jurisdiction. EU (Germany)
• Where the data sits. not stated on the pages we read; the vendor states processing follows GDPR
• Source code. Closed source
• Replaces. ZeroBounce

Email-Validator is the verification service of Byteplant GmbH in Neuendettelsau, Bavaria. The imprint names the Ansbach commercial register and a VAT ID. A free account checks 1,000 addresses, bulk lists are uploaded for cleaning, and a real-time API covers forms. The stages are syntax, MX lookup and an SMTP handshake with the destination server.

The same vendor sells address and phone validators, so one supplier can cover three kinds of contact data. Uploaded files are deleted after 14 days, according to the FAQ. Support runs by email, phone and chat, and the price page switches between EUR and USD. The amounts load by script and were not readable, and no server region is given.

Standout feature. Byteplant Email-Validator offers 1,000 free checks without payment details, the largest free allowance in this category.

#5 Email Hippo

Launceston, United Kingdom From USD 9.88 a month, subscription or pay as you go; 100 free checks; MORE covers 1,000 to 1,000,000 checks a month online, higher volumes via sales Demo on request

Best for: Teams that want separate products for list cleaning and for form-level risk checks

• Operating company. Email Hippo Limited
• Jurisdiction. United Kingdom (adequacy decision, outside the EEA)
• Where the data sits. not stated on the pages we read
• Source code. Closed source
• Replaces. ZeroBounce

Email Hippo is a product line of Email Hippo Limited, registered in England with its office in Launceston, Cornwall. CORE cleans a CSV list in bulk, MORE verifies in real time through an API, and INSIGHT and ASSESS add enrichment and fraud signals, with WHOIS lookups on top. A pricing table matches each product to a use.

Verification starts at USD 9.88 a month, with 100 free checks and no card needed. The terms give English courts exclusive jurisdiction. The United Kingdom holds an EU adequacy decision but sits outside the EEA, and the site lists a US toll-free number. Teams needing both bulk and API pay for two products, and no data location or accuracy guarantee is stated.

Standout feature. Email Hippo sells bulk cleaning, real-time verification and risk signals as separate products instead of one bundle.

#6 MailTester

Beerst, Belgium Pay as you go in USD: 5K credits USD 19, 50K USD 79, 1M USD 499, 10M USD 2,999; subscriptions from USD 39 a month; yearly billing 30% off; 100 free credits; credits never expire Demo on request

Best for: Senders who want verification and inbox placement tests from one Belgian vendor

• Operating company. Edustria V.O.F. (MailTester)
• Jurisdiction. EU (Belgium)
• Where the data sits. not stated on the pages we read
• Source code. Closed source
• Replaces. ZeroBounce

MailTester is operated by Edustria V.O.F., a Belgian partnership in Beerst, and its terms follow Belgian law. Besides syntax, MX, mailbox and disposable checks it tests where a real campaign lands, in the inbox, promotions or spam, and it watches blacklists. The home page states 99% accuracy, which is the vendor's own claim.

Pay-as-you-go credits do not expire: USD 19 buys 5,000, USD 79 buys 50,000 and USD 2,999 buys 10,000,000. Subscriptions start at USD 39 a month and yearly billing takes 30% off. A company number is not shown, no ISO or SOC certificate appeared, and the privacy policy mentions California rights beside European ones.

Standout feature. MailTester is the verifier whose plans include inbox placement reports and blacklist monitors alongside address checks.

#7 Syvel

France (city not shown), France Free EUR 0 with 100 requests a month; Starter EUR 9 for 1,000; Pro EUR 49 for 10,000; Business EUR 199 for 100,000 requests a month; prices exclude VAT Demo on request

Best for: Developers who want to block fake sign-ups through an API hosted in France

• Operating company. RCQD Labs (trading as Syvel)
• Jurisdiction. EU (France)
• Where the data sits. France (Scaleway SAS application servers and PostgreSQL database, per the sales terms)
• Source code. Closed source
• Replaces. ZeroBounce

Syvel is an email validation API run under the trade name of RCQD Labs, a French sole trader with a SIRET number. It judges the domain with live DNS data such as MX records, SPF, DMARC and domain age, returns a risk score from 0 to 100 and flags typos, role addresses and disposable domains. A privacy mode hashes the address.

Plans are in euros, excluding VAT: free for 100 requests a month, EUR 9 for 1,000, EUR 49 for 10,000 and EUR 199 for 100,000. French law governs the terms, and the sales terms name Scaleway SAS for application servers and the database. The vendor claims response times under 50 ms. We found no bulk upload and no mailbox-level SMTP check.

Standout feature. Syvel states where it runs: Scaleway servers and database in France, named in its sales terms.

#8 StopBouncing

Netherlands (address not shown), Netherlands Euro credit packs: 10,000 for EUR 18; 25,000 for EUR 35; 50,000 for EUR 52; 100,000 for EUR 99; 250,000 for EUR 180; 1,000,000 for EUR 600; no subscription, no expiry; 100 free verifications Demo on request

Best for: Occasional list cleaning with a euro price and no subscription

• Operating company. StopBouncing (KVK 42125347)
• Jurisdiction. EU (Netherlands)
• Where the data sits. claims EU hosting; the privacy policy names a Vercel region in Washington DC
• Source code. Closed source
• Replaces. ZeroBounce

StopBouncing is a Dutch pay-as-you-go verifier registered under KVK 42125347, whose terms follow Dutch law. Packs range from 10,000 credits for EUR 18 to 1,000,000 for EUR 600, there is no subscription or expiry, and 100 verifications are free. Results flag valid, disposable, invalid, role and unknown addresses, and payment by crypto is possible.

Hosting needs a question before you upload a list. The site markets EU hosting and GDPR compliance, while the privacy policy, effective 26 October 2026, names Vercel's EU region and a Washington DC region in one sentence. The text we read shows no legal form or street address, and Google Analytics is used.

Standout feature. StopBouncing publishes the lowest euro pack among the verifiers here: EUR 18 for 10,000 verifications.

#9 Mailjet

Paris, France Founded 2010 Free tier / From €15/month Demo on request

Best for: Teams needing collaborative email marketing

• Operating company. Mailjet
• Jurisdiction. EU (France)
• Source code. Closed source
• Replaces. SendGrid, Mailchimp

Mailjet is a Paris-founded sending platform, created in 2010 and now part of the Swedish company Sinch. Its blog describes email validations processed in the EU for customers. The product is an API, SMTP relay and a template builder first, and verification is a feature of that account rather than a stand-alone service.

That shapes who should read this entry. Anyone already sending through Mailjet avoids a second vendor and a second integration. Anyone cleaning a list that goes out elsewhere has little reason to start here. We did not read the verification price or the exact contracting entity for it, and the terms also mention Sinch Email entities in Texas.

Standout feature. Mailjet verifies addresses inside the platform that sends the mail, so list checks and delivery share one account.

#10 Mailboxlayer

Vienna, Austria Free plan; the home page offers 1,000 free requests a month and subscriptions from USD 9.99; the pricing page lists Basic at USD 14.99 a month (5,000 requests) and Professional Plus at USD 74.99 a month (50,000 requests) Demo on request

Best for: Developers who need a small API for form validation

• Operating company. apilayer Data Products GmbH
• Jurisdiction. EU (Austria)
• Where the data sits. not stated on the pages we read
• Source code. Closed source
• Replaces. ZeroBounce

Mailboxlayer is a REST API from apilayer Data Products GmbH in Vienna, registered as FN 532531i. Each response carries format_valid, mx_found, smtp_check, catch_all, role, disposable and free fields, a quality score and a did-you-mean suggestion for typos. The disposable and free provider database is described as updated daily.

The API is the whole product: no bulk upload, warmup or monitoring. The home page offers 1,000 free requests a month, while the pricing page shows USD 14.99 for 5,000 and USD 74.99 for 50,000, so verify the entry price. The terms were last modified in 2018, and the owner of apilayer is not named on the pages we read.

Standout feature. Mailboxlayer returns a score, a typo suggestion and every check flag in one JSON response.

#11 Loqate

Chester, United Kingdom Per lookup: email validation 7.7c, 6.9c and 5.6c across three tiers labelled EUR 75, EUR 150 and EUR 300; 45-day free trial; bespoke plans on request Demo on request

Best for: Companies that already validate addresses and phones and want email checks on the same platform

• Operating company. GB Group PLC (Loqate)
• Jurisdiction. United Kingdom (adequacy decision, outside the EEA)
• Where the data sits. not stated on the pages we read
• Source code. Closed source
• Replaces. ZeroBounce

Loqate is the data quality brand of GB Group PLC, based in Chester, with a company registration number and VAT number in its impressum. Email validation runs in real time or in batch and confirms through a series of steps whether the address exists on its mail server. The vendor claims 97% accuracy for that step.

The product sits next to address capture, address verification, phone validation and geocoding. Email lookups cost 7.7c, 6.9c and 5.6c across three tiers labelled EUR 75, EUR 150 and EUR 300, many times a bulk credit pack. A 45-day trial is offered. GBG lists US subsidiaries such as Loqate Inc, and no data location is stated.

Standout feature. Loqate checks email, postal address and phone number under one GBG contract.