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| SMTP | List-Unsubscribe Header Notes |
|---|---|
| Amazon | Ongage automatically injects its own List-Unsubscribe Header |
| Ongage SMTP | Ongage automatically injects its own List-Unsubscribe Header |
| Oracle Dyn | Needs to be configured manually by Ongage Support |
| InboxRoad | Ongage automatically injects its own List-Unsubscribe Header |
| Mailgun | Ongage automatically injects its own List-Unsubscribe Header |
| Private SMTP | Ongage automatically injects its own List-Unsubscribe Header |
| SendGrid | Contact Ongage Support to configure for each of your SendGrid connections to automatically inject the Ongage List-Unsubscribe Header. See more details in following subsection. |
| SMTP.com | Ongage automatically injects its own List-Unsubscribe Header |
| SparkPost | SparkPost automatically adds it's own List-Unsubscribe header |
| SparkPost Enterprise | Ongage automatically injects its own List-Unsubscribe Header |
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