# Understanding Accept-All Verification

Learn more about Accept-all domains and how to handle them.

Accept-All domains are configured to receive all emails sent to them, regardless of whether a specific mailbox exists. Emailable uses advanced multi-layered verification to provide the most granular results possible for these domains.

## Possible Results

Emailable processes Accept-All domains using the following logic to ensure the highest data integrity:

- **Full Verification:** For certain domains, we can definitively determine if an address is **Deliverable** or **Undeliverable**. In these cases, the status is converted to a concrete result.
- **Positive Certainty:** When we can verify an address is **Deliverable** but cannot definitively prove a bounce, the result will be either **Deliverable** or **Risky (Accept-All)**.
- **Negative Certainty:** When we can verify an address is **Undeliverable** but cannot confirm a successful delivery, the result will be either **Undeliverable** or **Risky (Accept-All)**.
- **Neutral Certainty:** In cases where the domain's configuration prevents any definitive proof of delivery or rejection, the result will remain **Risky (Accept-All)**.

Our classification of Accept-All addresses depends on the specific characteristics and security protocols of the target domain.