Icone email 1

B2B email address checker: emails found and validated

Find and verify your prospects’ emails, all-in-one. Achieve bounce rates under <1% and maximize your email deliverability without using a third-party tool. Included: warm-up for your prospecting infrastructure (emails and domains) for free with our partner InbloxFlare!

Utilisateurs prospection

+500 International partners

Rated 4.8/5 - Average response time: 7 seconds.
Software customer service (450+ ratings)

Interface LeadIn affichant les coordonnées d’un prospect (email, téléphone) et un indicateur de délivrabilité : 99 % d’emails envoyés, 1 743 prospects contactés.
Interface LeadIn montrant une séquence type qui part d’une campagne LinkedIn et inclut des étapes pour découvrir l’adresse email professionnelle du prospect.

Get your prospects' email addresses in one step

Do not interrupt your prospecting flow. Integrate the email search and verification step into your smart sequence and use the data seamlessly to communicate with your prospects immediately.

Obtain double-verified emails

We will not provide “catch-all” email addresses. Instead, we perform double verification of emails to protect your domain.

Schéma LeadIn affichant des statistiques de prospection B2B et un indicateur d’emails doublement vérifiés pour garantir la délivrabilité.

LeadIn finds your prospects' business emails - and then what?

With your LeadIn account, you automatically benefit from a free and unlimited account with InboxFlare. From your LeadIn account settings, you click on “InboxFlare” and receive your credentials in your email inbox. Result? You warm up your domains and email accounts dedicated to your prospecting in just a few clicks to ensure your prospects receive your emails in the main inbox.

LeadIn avec InboxFlare : email warmup illimité pour renforcer la réputation d’envoi et faire atterrir les emails en boîte de réception.

Combine email discovery with sending emails that land in the inbox

Our partnership with InboxFlare allows you to warm up an unlimited number of email domains, strengthen your reputation, and extend your prospecting while keeping your emails out of spam forever.

Install warm-up for emails and domains in just a few minutes

Installation is simple and quick. You simply add your email and let the warm-up run in the background. InboxFlare is compatible with all email providers and even custom SMTPs.

Interface de setup InboxFlare montrant l’ajout d’un compte email et le démarrage du préchauffage, compatible Gmail, Outlook et SMTP personnalisés.
IA InboxFlare analysant le domaine pour créer une stratégie d’échauffement personnalisée, augmenter la réputation d’envoi et le taux de réponse.

Benefit from personalized warm-up of your domains and emails by AI

InboxFlare’s AI analyzes domain-related information and implements a warm-up strategy and response rate better than anyone else. It then automatically increases your reputation and response rate. All you need to do is check when your email is ready for prospecting.

Warm-up with maximum reputation

The InboxFlare AI algorithm regularly performs reputation checks, inspecting dozens of parameters, including blacklists, domain settings, and inbox settings.

InboxFlare vérifie en continu la réputation d’envoi : listes noires, paramètres de domaine et réglages de boîtes de réception pour un échauffement à réputation maximale.
InboxFlare affichant le test de délivrabilité, la détection de listes noires et le placement des emails en boîtes de réception selon les fournisseurs.

Understand the status and reputation of your domain

With InboxFlare, you can perform an email deliverability test and check if your mail server is blacklisted and the placement of your emails in different providers’ inboxes.

Warm-up in your language for optimal deliverability

If you send emails in a language other than English, you will be delighted. InboxFlare supports up to 30 languages to make your warm-up even more effective. LeadIn also supports multiple languages, making your prospecting setup as easy as possible!

InboxFlare gère l’échauffement d’emails en plusieurs langues, jusqu’à 30 langues pour optimiser la délivrabilité au-delà de l’anglais.

Discover other LeadIn features in addition to our email address checker

Icone Envoyer

Automated LinkedIn prospecting

Icone email 1

Personalized email prospecting

Icone personnalisation image et gif 1

Personalized prospecting – visuals

Icone multicanal 1

Smart multichannel sequences

Icone partenaires

+830M

Number of professionals worldwide we can target for our clients.

Icone croissance

5-10X

Our clients achieve a 5 to 10 ROI within the first year with LeadIn.

Icone up

45%

More opportunities compared to any other traditional prospecting technique.

Frequently Asked Questions – Professional Email Address Checker

A valid email increases your chances of landing in the inbox and maximizing your ROI. If your mailing list is clean, you reduce your bounce rate, preserve sender reputation and improve deliverability. Being able to quickly verify an email address is essential if you want to become experts in multichannel B2B prospecting.

Yes, the Leadin email verification tool operates autonomously. You can use this function as a test to check the quality of your address list and launch your campaign later. To further enhance your email campaign process, take advantage of our resources on B2B emailing and lead generation.

By using an email verifier, you can expect a significant improvement in your campaign deliverability, reaching between 95% and 99% deliverability rates. If you want tips to go further and enhance your campaign suite, check out our examples of effective sequences for generating B2B leads.

Yes, we guarantee full compliance: your data and that of your prospects are secure at every step. Improve your sales process with the LeadIn method while adhering to regulations.

Absolutely, our email verification tools integrate easily via API with your existing solutions. Centralize your B2B marketing actions and optimize qualified lead generation directly from your CRM. To organize your next campaign right away, visit our page dedicated to B2B marketing strategies to generate qualified leads.

Yes, you can import your databases, even old ones, to clean and validate each email address list. All that’s left is to use effective email scrapping tools to find leads and turn your dormant databases into active resources for your campaigns.