# Email Domain > Allowed values for the email address type field returned by Egon validation and enrichment services, with the meaning of each value. Allowed values for the email-address `type` field returned in validation and enrichment responses. ## Email Types Classification codes distinguishing regular email inboxes and certified electronic mail (PEC). | Field | Data Type | Code | Description | | --- | --- | --- | --- | | type | String | 01115 | Email | | type | String | 01601 | Pec |