Domain Reputation
The reputation score assigned specifically to your sending domain, affecting all mailboxes on that domain.
What is Domain Reputation?
Domain reputation is the trustworthiness score assigned to your email-sending domain (e.g., yourdomain.com). Unlike IP reputation, domain reputation follows you regardless of which mail server or IP you send from.
Email providers like Gmail and Microsoft maintain internal domain reputation systems that consider:
- Sending history from the domain
- Bounce and spam complaint rates
- Domain age (new domains are inherently less trusted)
- Authentication setup (SPF, DKIM, DMARC)
- Content patterns in emails from the domain
For cold email, domain reputation is critical because: 1. It affects ALL mailboxes on the domain 2. It's harder to change than IP reputation 3. Bad reputation can take months to recover
Why It Matters
- 1Single most important factor for cold email deliverability
- 2Affects every mailbox on the domain simultaneously
- 3Why we recommend multiple domains (10+) to spread risk
- 4A damaged domain reputation can take months to recover
How to Measure
Use our Domain Reputation Checker to see your reputation across major blacklists and security services.
Related Tools
Related Terms
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