How Does Visual Visitor Verify Email Addresses Before Delivering Them?

Visual Visitor applies multiple layers of email validation before delivering identified contact data to ensure you receive high-quality, deliverable email addresses.

Email validation process

Historical confidence score: When an email address is first identified, it is assigned a historical confidence score based on prior validation results, domain reputation, and data source reliability. Scores range from 0-100.

Real-time verification: When you request contact details (e.g., via the Who to Contact search), Visual Visitor performs a real-time email verification check against the address. This is a live SMTP check that confirms whether the mailbox exists and is accepting messages.

Credit return policy: If the real-time verification returns a confidence score of 40 or below, the contact credit used to retrieve that contact is automatically returned to your account. You are not charged for unverifiable contacts.

What types of emails are excluded?

• Role-based emails (e.g., info@, support@, admin@) - these typically reach a group inbox, not the individual identified.

• High-confidence catch-all addresses (if your catch-all filter is enabled).

• Addresses with very low historical confidence scores that fall below your account's minimum threshold.

Understanding the confidence score

• 90-100: Very high confidence. Safe to use for outreach and CRM upload.

• 70-89: Good confidence. Suitable for most outreach, minor bounce risk.

• 41-69: Moderate confidence. Use with caution. Consider email warm-up before large sends.

• 40 and below: Low confidence. Contact credit is returned. Address is not recommended for use.

To filter your saved contacts by confidence score, use the confidence score filter in the Who to Contact search interface.

Find more about the Real Time Confidence Score, here.