Sender Reputation
A score assigned to your email-sending identity based on your historical sending behavior and recipient engagement.
What is Sender Reputation?
Sender reputation is like a credit score for email. Email providers track your sending behavior over time and assign a reputation score that influences whether your future emails reach the inbox or get filtered to spam.
Reputation is built on multiple signals:
- Bounce rate: How many of your emails fail to deliver
- Spam complaints: How often recipients mark your emails as spam
- Engagement: Do recipients open, reply, or delete your emails?
- Sending volume patterns: Consistent sending vs. sudden spikes
- Content quality: Spam-like content patterns
Reputation operates at multiple levels: IP reputation, domain reputation, and sometimes mailbox reputation. For cold email, domain reputation is typically the most important.
Why It Matters
- 1Primary factor in whether emails reach inbox or spam
- 2Takes weeks to build but can be damaged quickly
- 3Affects all emails from your sending infrastructure
- 4Cannot be bypassed with technical tricks
How to Measure
Check domain reputation with our Domain Reputation Checker. Monitor bounce rates and spam complaints over time.
Related Tools
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