How It Works

Four-step email verification

Every email goes through a multi-layered verification pipeline in milliseconds.

Step 01

Validate format

Check email syntax against RFC standards to catch typos and malformed addresses instantly.

Step 02

Check domain & MX records

Verify the domain exists and has valid mail exchange records configured to accept email.

Step 03

Detect disposable emails

Screen against 3,000+ known disposable and temporary email providers in real time.

Step 04

Verify mailbox via SMTP

Ping the actual mailbox to confirm the address exists and can receive mail.

Technical Details

RFC 5322 Compliance

We validate email addresses against RFC 5322 standards, catching malformed addresses before they reach your database.

MX Record Resolution

DNS lookups verify that the domain has properly configured mail exchange records and can receive email.

Disposable Email Database

Our constantly updated database includes 3,000+ disposable and temporary email providers, plus domain age checking.

SMTP Handshake

We connect to the mail server and verify the mailbox exists without actually sending an email.

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