How to fix the issue when emails sent via SMTP are being marked as spam or getting blocked by the Oracle Cloud Infrastructure (OCI) email server ?
This issue arises because the OCI Email Delivery system only supports email addresses with the .oraclecloud.com domain. To resolve this, you will need to create an email address with the .oraclecloud.com domain and add it to the Approved Sender list in the OCI Email Delivery service.
Step 1: Log in to the OCI Console, navigate to Developer Services, and open Email Delivery.
Step 2: Next, navigate to the “Approved Senders” tab and ensure that you are using an email address with the .oraclecloud.com domain, as highlighted in the screenshot below
External Reference:
For official Oracle guidance on OCI Email Delivery, visit:
➡️ OCI Email Delivery Documentation