What is a Spam Complaint Rate?
The percentage of recipients who mark your email as spam.
✓ Definition copied to clipboard
Understanding Spam Complaint Rate
Spam complaint rate measures how many recipients report your email as spam. It is one of the strongest signals inbox providers use to judge sender reputation.
Even small increases can significantly reduce deliverability. Keeping this rate low requires clean lists, relevant content, and clear opt-in practices.
Frequently Asked Questions
What is a Spam Complaint Rate?
The percentage of recipients who mark your email as spam.
Spam complaint rate measures how many recipients report your email as spam. It is one of the strongest signals inbox providers use to judge sender reputation.
Why is Spam Complaint Rate important?
High spam complaint rates can get your domain blocked. Monitoring and reducing complaints protects inbox placement.