Email Validation
& Email Warm-up
For Free.*

* 1,000 free email validation credits,
then 200 recurring monthly, lifetime.

7 days free trial for our email warm-up tool

No credit card required

We cleaned more than 13,354,000,000+ emails since 2021. We warmed up more than 1,500+ mailboxes since the same date.

SMTPing Email Validation

Join thousands of Marketers, SaaS & Growth Managers, Agencies and Startups

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SMTPing Warm-up Tool

Connect and automate your entire warm-up process.

Try it Free
How SMTPing Works

Pay as you go, or with subscription

Purchase a number of credits (email validation), or take a subscription (email validation and email warm-up) – it’s time for your emails and mailboxes to start working for you.

Upload

Whether it s CSV, TXT, or XLSX

Select

Select your emails column

Verify

Start verifying your emails

Use

Download or integrate your list

Over 5,000+ companies use our services already

Improve your Email Deliverability

With our free email validation tool, cross-check your list with the biggest spamtraps database in the world, within a couple of minutes.

With our free trial email warm-up tool, start improving your sender score from day 0, automatically.

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Connect your account

Sign in and seamlessly connect your mailbox account

Choose the warm-up temperature

Choose how many emails do you want to send every day

Start sending

Start sending from your end

Email Warmup Integrations


Integrate Any Email Serice Provider.

We offer a wide range of 1-click seamless integrations, as well as traditional SMTP integration. Overall, more than 20 integrations are included.

See all integrations
FAQ

Frequently Asked Questions

Find your answers here, if not, please contact us.

Contact us

See all SMTPing warm-up questions

See all SMTPing email validation questions

SMTPing validates email addresses for accuracy and deliverability. The tool aids in improving email marketing campaigns. It helps reduce bounce rates by identifying invalid addresses.

SMTPing employs a series of comprehensive checks to validate email addresses effectively. It uses the Simple Mail Transfer Protocol (SMTP) to connect to the mail server associated with the target email address. The tool then simulates the sending of an email and analyzes the server's response to determine whether the address is valid. Additionally, SMTPing checks for common formatting errors and verifies the domain's DNS records.

Email validation is crucial for maintaining a clean and engaged recipient list. Sending emails to invalid or non-existent addresses can harm your sender reputation and result in your messages being marked as spam. By using SMTPing to validate email addresses, you can ensure that your communications reach genuine recipients, improve deliverability rates, and enhance the effectiveness of your email campaigns.

Yes, SMTPing Free Email Validation Tool is equipped to handle bulk email validation. Whether you have a large mailing list or a batch of leads to verify, SMTPing can efficiently process and validate email addresses in bulk. This feature is particularly valuable for businesses and marketers who need to ensure the accuracy of their contact databases.

SMTPing warm-up is a 7-day free trial tool. You can subscribe directly from here

Email warm-up is the practice of preparing a new or dormant email account for future email activities such as outreach or campaigns. This is particularly beneficial for both cold and mass email accounts, which often face issues with email delivery due to the nature of the emails they send.

Email accounts typically encounter problems with email delivery over time. Conducting a thorough inbox warm-up can counteract this trend, aiding in the preservation and enhancement of email delivery and sender reputation.

Email warm-up is essential for anyone sending cold emails. This includes individuals in roles like marketing, sales, lead generation, recruitment, and outreach.

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