Mails.so

Validate every email address your AI agent collects, instantly

Before a lead enters your CRM or mailing list, your AI agent verifies their email through Mails.so's validation API. Invalid addresses get caught during the conversation, not after your bounce rate spikes. Clean data from the first interaction, every time.

Chosen by 800+ global brands across industries

Real-time email hygiene built into chat

Your AI agent validates individual emails on the spot and runs bulk verification jobs, ensuring every address your business collects is deliverable.

Mails.so

Use Cases

Clean data from every conversation

See how AI agents use real-time email validation to protect your sender reputation and ensure every lead is worth pursuing.

Lead Capture with Built-in Verification

A prospect fills out details through your AI chatbot. As soon as they type their email, the agent validates it through Mails.so in real time. If the address is invalid or a known disposable domain, the agent politely asks for a different one. Your CRM only receives verified leads. Your sales team never wastes time on unreachable contacts.

Pre-Campaign List Cleaning via Conversation

Your marketing team tells the agent to validate a batch of 500 subscriber emails before a product launch campaign. The agent submits the list to Mails.so's bulk API, waits for processing, and returns a summary: 478 valid, 15 risky, 7 invalid. Your team removes the bad addresses before hitting send, protecting your domain reputation.

Signup Form Fraud Prevention

Bots are submitting fake emails through your registration flow. Your AI Agent validates each email at the point of collection, rejecting disposable and invalid addresses in real time. Free email providers get flagged for additional verification. Spam registrations drop dramatically without adding CAPTCHAs or friction for legitimate users.

Try
Mails.so

Mails.so

FAQs

Frequently Asked Questions

How does the AI agent validate emails in real time during conversations?

When a visitor provides their email, the agent calls Mails.so's Validate Single Email API endpoint before proceeding. The response includes deliverability status, domain validity, MX record checks, and whether the address is disposable or free. This happens in under a second, so the conversation flow is not interrupted.

What happens if the email fails validation?

You configure the behavior in your agent settings. Options include politely asking for a different email, explaining that the address appears invalid, or accepting it with a warning flag. For common typos like 'gmial.com', the agent can suggest the correction 'gmail.com' and ask the user to confirm.

Can the agent handle bulk email list validation?

Yes. The agent submits up to 1,000 emails per batch using the Validate Bulk Emails endpoint. Since bulk processing is asynchronous, the agent monitors the job status and retrieves results via the Retrieve Batch Results endpoint when the validation completes.

Does Tars store the email addresses it validates?

No. Tars passes email addresses to Mails.so's API in real time and receives validation results. The addresses are used only within the active conversation context. Tars does not maintain a separate database of validated emails.

How accurate is the email validation?

Mails.so checks MX records, SMTP connectivity, domain validity, and known disposable provider databases. The service returns a quality score per email. While no validation service can guarantee inbox delivery, Mails.so catches the vast majority of invalid, temporary, and unreachable addresses.

Does the validation slow down the chat experience?

Single email validation typically completes in under one second. The agent can validate while composing its next response, making the check nearly invisible to the user. Bulk validations run asynchronously and do not block the conversation.

Can I set different validation strictness levels for different use cases?

Yes. Configure your agent to accept free email providers for newsletter signups but require business domains for demo requests. Use the quality score threshold to determine whether an email passes or gets flagged. Different gambits can apply different validation rules.

How is this different from just checking email format with regex?

Regex only checks if an email looks structurally valid. Mails.so verifies that the domain exists, MX records are configured, the mailbox accepts mail, and the address is not disposable. An email like 'user@tempmail123.com' passes regex validation but fails Mails.so's deliverability check.

How to add Tools to your AI Agent

Supercharge your AI Agent with Tool Integrations

Don't limit your AI Agent to basic conversations. Watch how to configure and add powerful tools making your agent smarter and more functional.

Privacy & Security

We’ll never let you lose sleep over privacy and security concerns

At Tars, we take privacy and security very seriously. We are compliant with GDPR, ISO, SOC 2, and HIPAA.

GDPR
ISO
SOC 2
HIPAA

Still scrolling? We both know you're interested.

Let's chat about AI Agents the old-fashioned way. Get a demo tailored to your requirements.

Schedule a Demo