What do the verification result codes mean, and how should I use them?

Each result code categorizes an email address as safe, risky, or toxic based on its threat level and deliverability likelihood. Categories of threats include reputation, fraud, delivery, and conversion. Safe emails are considered deliverable addresses and can be used confidently. A valid email address is one that passes all verification checks, confirming it is properly formatted, exists, and is capable of receiving messages. Risky emails may be undeliverable addresses or have uncertain status, so they may require segmentation or conditional messaging. Toxic emails are deliverable addresses that should not be sent to—they can harm deliverability and sender reputation. If you need help understanding your Webbula intelligence reports, please contact our customer support team.