Email feedback loop

What feedback loop data is, how eMarketeer uses it, and how to act on the information it provides.

What it means

A feedback loop is a mechanism that some email service providers and reputation services use to share third-party reputation signals about sending behavior.

These signals come from external sources and can include:

• Spam complaint trends
• Sender reputation changes
• Engagement-related signals

eMarketeer collects and aggregates this feedback loop data to help identify deliverability issues early.

Why it matters

• Feedback loop signals can flag emerging deliverability problems before mail is blocked or filtered.
• Ignoring negative signals can lead to reduced inbox placement or sending restrictions.
• Acting early protects your sender reputation and your ability to keep sending.

Feedback loop data is a proactive warning system. It does not directly block sending, but sustained negative signals can contribute to enforcement actions.

What you should do

If you receive feedback loop warnings or guidance, act immediately:

• Clean your contact lists and remove inactive or unengaged contacts.
• Reduce sending volume temporarily if volumes have grown quickly.
• Adjust sending frequency and patterns.
• Review recent campaigns for relevance, expectations, and opt-in quality.
• Keep complaint and bounce rates low.

For detailed guidance, see Maximizing email marketing success – best practices and pitfalls to avoid.