Smartermail has added request delivery receipts by default from their Build 6911 (Dec 3, 2018) version. Any other version before this release, will not have the same option. It is within the user account setting. Once it is enabled, the sender will receive a delivery receipt that verifies the delivery status of outgoing emails sent via webmail or email clients.
Please refer to the following steps to enable the delivery receipt for your emails.
- Login to your smartermail.
- Click on your Domain >> Manage.
- Click on the impersonate button and select the email account you want to set the delivery receipt.
- Go to the settings and check for the request delivery receipt by default.
This is it. You are done with the delivery receipt.