Try the SafetyMails free email checker tool and verify any email address in seconds.
Our tool instantly detects valid, invalid and risky emails, including disposable or fake addresses,
helping you keep your list clean, improve deliverability and protect your sender reputation.
[[STATUS]] |
Domain [[DOMAIN]] |
Domain Status [[DOMAIN_STATUS]] |
|
MX Register [[MX]] |
Free email [[PUBLIC]] |
Disposable [[DISPOSABLE]] |
|
Catch-All / Reject-All [[CATCH_REJECT_ALL]] |
Role-Based [[ROLE_BASED]] |
Did you mean? [[DID_YOU_MEAN]] |
Many companies forget that behind every invalid email there is wasted time and money.
Sales reps following up with contacts that will never respond, campaigns sent to addresses that don’t exist, and reports inflated with useless data. Validating your emails before outreach is more than just a technical step: it’s a way to protect your resources, optimize your sales team’s efforts, and increase real conversion opportunities.
Sign up and get free credits to try
An email checker (or email validator / email address checker) confirms whether an address is valid, active, and safe to send to. It acts as a security and quality gate for your database, ensuring you connect only with real email users and maximize email marketing performance. By filtering out invalid, disposable, risky, or mistyped addresses, you:
Before we start, note how simple the process is: in just a few steps you can validate thousands of addresses without complexity.
A valid email address is an active, working account that can reliably receive messages and is not linked to temporary or disposable domains. It is the foundation of every successful campaign, since sending to real users protects your domain reputation and ensures better inbox placement. By using an email verifier you confirm email validity before sending, reducing bounce rates, increasing engagement, and improving ROI for your email marketing.
Now that you know what a valid email address is, would you like to learn about the main types of emails that can harm your reputation? Click to explore: Spamtraps, fake emails, bounces, and temporary emails.
Download the 2025 Email List Quality Report by SafetyMails and discover exclusive data from millions of verified addresses across different industries.
Get your free report
Our platform goes beyond simple checks. With SafetyMails you receive a complete report where every email in your list is classified with clear statuses. These detailed reports empower your marketing and sales teams to make decisions with confidence, segment better, and protect the reputation of your sender domain. By understanding each category, from Valid to Spamtrap suspected, you gain full visibility of the health of your database and ensure maximum deliverability in every email marketing campaign.
Here are all the statuses available in SafetyMails analysis (based on our graphical reports):
Email is deliverable and safe to send.
Recommended action: keep in your list and send confidently.
Address does not exist or mailbox/domain is undeliverable.
Recommended action: remove from your email list.
Domain accepts all emails, but specific mailbox may not exist.
Recommended action: remove from your email list.
Disposable or temporary provider detected.
Recommended action: remove from your email list.
The domain does not exist, making the address undeliverable.
Recommended action: remove from your email list.
Looks like an anti‑spam trap; avoid sending.
Recommended action: remove from your email list.
Generic addresses like info@, sales@, which may not engage.
Recommended action: stay alert — these addresses are risky and should be tested before large campaigns
Invalid format or characters in address.
Recommended action: remove from your email list.
Valid address, but limited capacity may cause delivery issues.
Recommended action: keep in your list, but monitor performance.
Do not send. Likely to be blocked by spam filters and flagged as junk.
Recommended action: remove from your list.
By removing invalid and risky addresses, your campaigns avoid hard bounces, which directly increases inbox placement and keeps engagement steady.
Each bounce or complaint damages your domain reputation. With a clean list, ISPs trust your messages more, reducing the risk of being blacklisted.
Every credit counts. By sending only to valid and reachable contacts, you avoid wasted spend and improve conversions from the same budget.
Verified emails ensure your entire tech stack has reliable data, improving segmentation, automation, and personalization.
Prevent bad data at the source. The real‑time email checker API validates emails instantly as users type them into your forms, sign‑ups, or checkout pages. This ensures only real, valid users enter your database and keeps your email marketing performance high.
SafetyMails uses a simple and flexible credit-based system. You only pay for the number of verifications you need, with no mandatory subscriptions. Each email verification consumes 1 credit, and you can purchase packages that fit the volume of your database—from small lists to millions of addresses. Bulk discounts are available for larger volumes, ensuring the best cost-benefit for your campaigns. Payments can be made via credit card or PayPal, and subscription is only required if you plan to use the API for continuous validation.
The minimum package is 1,000 credits for just $8, making it affordable to start validating right away.
Our platform was designed to provide a complete, secure and efficient email verification experience, with unique differentials that make a real impact for marketing, sales and operations teams:
The most detailed email check analysis report: full insights with categories and status explanations.
High-volume capacity: upload and verify up to 2 million email addresses at once with stability and performance.
Multi-layer validation technology: advanced filters analyze from syntax to real mailbox existence, ensuring precise and reliable results.
Automatic error correction: identifies and suggests corrections for mistyped domains, recovering valuable contacts.
Native integrations: connect seamlessly with major email marketing platforms and CRMs, simplifying workflows.
Security and compliance: all data is encrypted and processed in full alignment with GDPR/LGPD, ensuring total confidentiality.
Detailed and exportable reports: complete insights on the health of your database, with clear categories for faster decision-making.
Humanized multilingual support: our team is ready to help in Portuguese, English and Spanish via chat, email or WhatsApp.
True scalability: validate from small lists to millions of addresses with consistent performance and reliability.
Free trial: test all features with free credits when creating your account.
SafetyMails offers a Batch Email Validation API. Developers can consult the Swagger docs and request API credentials for access.
These differentials reflect SafetyMails’ commitment to deliver quality, security and practicality so you achieve the best results in your campaigns and operations.
SafetyMails is trusted by companies in diverse industries where email is a critical communication channel. Whether your goal is marketing, sales, customer success, or sensitive communications, verified data ensures your messages reach the inbox and generate results.
Clean lists before campaigns, ensuring higher deliverability and engagement.
Protect sign‑ups and free trials by preventing fake or disposable emails.
Enrich and validate leads before outreach, saving time and improving conversion.
Reduce failed notifications & recover carts with accurate customer addresses.
Maintain list hygiene across multiple clients, protecting reputation and ROI.
Ensure proposals and sensitive communications reach the inbox, avoiding bounces and protecting domain reputation with verified and reliable addresses.
Validate student and applicant contacts, reducing errors in academic communications and enrollment processes.
Keep member databases clean to improve event communications, newsletters, and engagement.
Ensure property proposals and client follow-ups arrive safely in the inbox, increasing sales opportunities.
Validate large member lists to guarantee that sensitive financial information and offers are delivered securely.
Here are some real examples of companies that trusted SafetyMails to improve their results:
“As one of the largest insurance companies in Brazil, Icatu needed to ensure that its communications with millions of clients were secure and reliable. By adopting SafetyMails, Icatu reduced hard bounces, improved inbox placement, and guaranteed that critical messages like policy updates and service communications reached real customers consistently.”
Humberto Sardenberg, Superintendent of Icatu Insurance
“With a massive database built over years of operations, Reader’s Digest faced challenges with outdated and invalid addresses. Using SafetyMails, the company achieved up to 96% reduction in bounces on its campaigns, protecting domain reputation and ensuring higher engagement. This clean-up directly impacted revenue by improving open and click rates across their marketing emails.”
Eduardo Marques, Systems and infrastructure coordinator
“Specialized in data-driven campaigns, BD1 had the challenge of working with large, old, and mixed-quality lists. By integrating SafetyMails’ verifier, BD1 cleaned and segmented its email bases, improving inbox placement and maximizing ROI. The agency reported increased client satisfaction thanks to higher deliverability and reduced campaign waste.”
Danielle Andrade – DB1 Inbound MKT analyst
SafetyMails is trusted by more than 8,000 companies worldwide — from small businesses to large enterprises — to ensure that their email communication is secure, accurate, and effective.
Join thousands of businesses that already use SafetyMails to keep their databases healthy and their campaigns successful.
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Clean lists enable better segmentation, higher open and click rates, and improved overall deliverability.
Email verification is valuable in marketing, sales, e-commerce, finance, agencies, and other industries that rely on email as a critical communication channel. Each segment benefits by reducing errors, protecting reputation, and driving better results.
Sales and marketing teams can validate leads before outreach, avoiding wasted effort with invalid addresses. This ensures that both commercial and marketing campaigns focus only on real opportunities, saving time and increasing conversion rates.
Validation can be embedded directly into registration and onboarding steps through the SafetyMails Email Checker API. This allows you to check each address in real time as users type, blocking disposable, fake or risky emails before they enter your CRM.
For ongoing list hygiene, you can also run recurring bulk email verifications: upload or integrate your email lists regularly (monthly or before large campaigns) to ensure your database stays clean and updated. This combination of real-time API + scheduled bulk checks keeps your communication consistent and your sender reputation protected.
We recommend validating emails regularly, especially before major campaigns, and using the Email Checker API on forms for continuous prevention.
Yes. The email checker is ideal for cleaning and refreshing outdated or inactive lists, removing invalid entries
Yes. Validating emails before sending abandoned cart notifications ensures messages are delivered and increases conversion chances.
Our API validates emails instantly as the user types in the form. It’s easy to integrate, responds quickly, and protects your database from the start.
Yes. By validating emails at signup or registration, the tool blocks fake, abusive, or disposable addresses from entering your system.
Sending to invalid addresses increases your bounce rate, damages your sender reputation, and may even land your campaigns in the spam folder. Just 3% of invalid emails in your list can already compromise the entire campaign and seriously harm your domain reputation. That’s why it’s critical to validate your list before sending.
With our email verifier, you can validate up to 100 emails for free after creating your SafetyMails account. This allows you to test all features before purchasing credits.
SafetyMails uses a credit system: each verification consumes one credit. You can buy packages according to the size of your list, with no mandatory subscription.
No. Your list is handled with complete confidentiality and security. All data is encrypted and never shared with third parties, fully compliant with GDPR/LGPD.
The time depends on the list size, but our system is optimized to validate thousands of emails in just a few minutes. You can monitor progress in real time via the dashboard.
Each email receives a status, such as:
Yes. We follow strict data protection practices and operate fully in line with GDPR and LGPD.
We offer direct integrations with tools like Mailchimp, Brevo, SendGrid, GetResponse, and others. Just connect your account and import/export lists in a few clicks.
Yes! Our support team is available in Portuguese, English, and Spanish via chat, email, or WhatsApp.
Our system detects and suggests automatic corrections for common domain typos (e.g., gmal.com → gmail.com). You just need to review and approve the corrections in your report.
It’s a domain that accepts any email address, even if a real mailbox does not exist. Sending to these domains can be risky because delivery is not always guaranteed.
Use our real-time verification API on your forms. It automatically blocks disposable and temporary emails at the time of registration.
Our API validates emails instantly as the user types in the form. It’s easy to integrate, responds quickly, and protects your database from the start.
Yes. The validation process detects and blocks temporary domains, fake emails, and addresses created to bypass registration systems. This significantly reduces the risk of fraud, abusive sign-ups, and malicious access, protecting both your database and your company’s reputation.
