How to set the return-path within your Magento 1 installation to correct issues with sending emails to specific providers, such as when they inaccurately flag them as spam.
Setting the return-path email designates an email address for all failed emails. By default, most mail servers use the server’s email address for failed deliveries, preventing you from seeing those failed emails. It also resolves issues with customers not receiving system emails relating to registration, password recovery, and order notification.
- Log in to your Magento Admin Panel.
- Select System > Configuration.
- In the Configuration menu, scroll down until you see the Advanced sub-menu, then click System.
- In the System menu, click Mail Sending Settings, and from the Set Return-Path drop-down list, select Specified.
- In the Return-Path Email field, provide your desired email address.
- Click Save Config.