Email and Phone Number Validation

  • Ensure every message reaches its mark
  • Boost your outreach success
  • Streamline operations with automated validation
14-day trial period

Trusted by 25K+ businesses

higher conversion
increased engagement
reduced bounse rate

Ensure accurate outreach with Reply’s email and phone number validation

Ensure accurate outreach with Reply's email and phone number validation

Enhanced Deliverability

Send messages to valid addresses or numbers and reduce the risk of bounces and undeliverable messages, ensuring your communication reaches its intended recipients

Ensure accurate outreach with Reply's email and phone number validation


Spend efficiently by targeting valid emails and phone numbers, ensuring that resources aren’t wasted on unreachable contacts. Pay only for actual validations, optimizing your budget

Ensure accurate outreach with Reply's email and phone number validation

Data Accuracy

Categorize email addresses and phone numbers as Valid, Risky, Invalid, or Unknown, giving you a precise understanding of the quality and reliability of your contact data

Ensure accurate outreach with Reply's email and phone number validation

Reduction in Penalties

Minimize the risk of blacklisting by avoiding honeypots and spam traps. Maintain your business’s reputation and avoid potential penalties by sending to legitimate addresses

Ensure accurate outreach with Reply's email and phone number validation

Effective SMS Routing

Distinguish between mobile, landline, and other phone number types. By ensuring SMS messages are appropriately routed, you maximize the chance of your messages reaching their desired recipient

Ensure accurate outreach with Reply's email and phone number validation

Improved Campaign Metrics

Achieve a clearer understanding of campaign performance by eliminating invalid or non-deliverable contacts, leading to more accurate analytics and insights

Ensure accurate outreach with Reply's email and phone number validation

Automated Process

Benefit from a system that automates email and phone validation, saving time, minimizing manual errors, and guaranteeing consistent data validation across all campaigns

Ensure accurate outreach with Reply's email and phone number validation

Increased Engagement Rates

This focus on quality recipients can lead to higher conversion rates and a greater return on investment for your marketing efforts

Reply verifies each phone
number and email address
to ensure the success of
your outreach

Full-cycle sales engagement solution


Find business emails and push them to a sequence in Reply.

  • Reply data
  • Contact data sourcing
  • Email & phone validation


Engage your leads with automated multichannel sequences.

  • Multichannel sequences
  • Cloud calls
  • Professional network automation
  • Messengers & social media
  • Personalized videos


Execute tasks, make calls, reach out on Professional network, and sync data with your CRM.

  • Meeting booking
  • Task flow
  • Triggers
  • Contact management
  • Integrations


Analyze outreach results, A/B test your messages and improve team performance.

  • Reports and analytics
  • AI email assistant
  • A/B testing
  • Sequence templates


“My favourite feature of Reply has to be the support. Every time I had a problem, it was solved quickly.“

97% open rate
66% response rate
Francis Kinder
Francis Kinder
Head of Performance Sales at TrafficPartner

“Reply has helped me deliver the right emails to the right person, the right number of times.”

92% open rate
52% response rate
Josh Sullivan
Josh Sullivan
CEO & Founder of Magnolia Innovative Solutions

“We saved 7 hrs/week for each salesperson, 50% of deals closed are now following a Reply campaign.“

80% open rate
42% response rate
Yannis Moati
Yannis Moati
CEO and Founder of HotelsByDay
Every contact matters. 
Ensure they’re right with our validation.
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Integrate Reply with everything you need


Frequently Asked Questions

What does the system offer in terms of email validation?

Reply provides a comprehensive check for each email address by various parameters, marking them as Valid, Risky, or Invalid based on the results.

How does the system classify a ‘Valid’ email?

A Valid email has completed verification to the mailbox level with no detected high-risk factors. It is safe for you to send emails to these addresses.

What does a ‘Risky’ email status mean?

Risky emails indicate the recipient’s mail server confirmed its existence, but there might still be chances of a bounce or it being of low value. Factors like being from a well-known disposable email provider, or the email being a ‘Catch all’ can render an address risky.

How does the system determine an ‘Invalid’ email address?

An email is marked Invalid due to various errors, ranging from syntax errors, such as improper format or invalid characters, to DNS errors, such as non-existing domains or unaccepted messages by the mail exchanger.

Can I still use contacts with an ‘Invalid’ status in my sequence?

Yes, contacts marked as ‘Invalid’ can still be moved in a sequence, as long as there are no email steps, aiding in handling large volumes of contacts and ensuring deliverability.

What benefits do I get with automated SMS steps in sequences?

Our system automatically validates contact phone numbers, distinguishing valid from invalid numbers. It ensures auto SMS is sent only to valid and mobile phone numbers, enhancing the message deliverability.

Why is phone number validation crucial?

Phone number validation ensures the SMS reaches the correct recipient. Without validation, you risk sending messages to non-existent or incorrect numbers, leading to delivery errors and unclear SMS statistics.

What does it mean when a phone number’s status is ‘Unknown’?

An ‘Unknown’ status indicates that while the phone number is correctly entered, due to a lack of carrier information, the system can’t determine if it’s a mobile or landline number. SMS is sent to these numbers regardless.

How do you validate phone numbers?

We utilize the Twilio Lookup API to verify all phone numbers linked to contact profiles. Post-validation, the system categorizes these numbers, and processes them accordingly.

Are there any restrictions on which phone numbers can be validated?

Yes, Reply doesn’t validate phone numbers from Canada due to Canadian law’s privacy provisions. Additionally, delivery to Canadian numbers isn’t guaranteed.

How does the pricing for phone number validation work?

Validation functions post-payment. For each phone number validation, $0.008 is deducted from your wallet. This pricing is determined by Twilio’s Line Type Intelligence tariff, and you’re charged per request.

Elevate Your Outreach Accuracy with Email & Phone Validation from

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Maximize Campaign Success with Free Email Validation

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Take the first step towards flawless communication with’s advanced validation solutions. Ensure that your messages reach the right inboxes and that your calls are received by the right people. With our email validation online tools and services, you’re not just sending messages; you’re making connections that count.