Adobe Campaign Classic: ‘Feedback_loop_’ bounce for failed email deliveries
This articles explains the Campaign Classic issue of failed email deliveries resulting from Feedback_loop_bounces. This issue can be resolved by configuring the platform to block future deliveries to recipients who have registered complaints.
Description description
Environment
- Adobe Campaign
- Adobe Campaign Classic
Issue/Symptoms
You can see Tracking Open logs for failed deliveries with the following bounces:
Inbound email bounce (rule 'Feedback_loop_Yahoo' has matched this bounce).Inbound email bounce (rule 'Feedback_loop_Hotmail' has matched this bounce).Inbound email bounce (rule 'Feedback_loop_xxxxx' has matched this bounce).
Resolution resolution
Here’s what happens when a Feedback_loop_ bounce is received:
A feedback loop declares at the ISP level a given email address for a range of IP addresses used for sending messages. The ISP will send the messages that are reported by you (or other recipients) as spam to this mailbox (in a similar way as what is done for bounce messages).
The issue here can be resolved by configuring the platform to block future deliveries to you and other users who have complained. It is important that you are no longer contacted even if you did not use the proper opt-out link.
It is on the basis of these complaints that an ISP blacklists an IP address. Depending on the ISP, a complaint rate of around 1% will result in the blacklisting of an IP address.
In other words, feedback loops operate like bounce emails:
- Message is initially accepted by your server and delivered to you.
- You may open/click on the email first, but then decide to qualify the email as spam.
- The MBP in this case will send back a report to ACC regarding this complaint, which is called feedback.
- Now, because you have opened/clicked on the email in this case, the tracking data will reflect that.
For more information on feedback loops, please refer to our documentation on Campaign Classic - Technical Recommendations.