What causes blocklist listings (technical vs behavioral)?
Technical causes:
- Compromised server or account sending spam
- Open relay being exploited
- Malware infection
- Poor network hygiene
Behavioral causes:
- Sending to purchased or scraped lists
- High complaint rates
- Spam trap hits
- Ignoring unsubscribes
- Deceptive content or practices
Hybrid causes:
- Compromised forms adding bad addresses
- Poor list hygiene allowing trap accumulation
- Volume spikes from automation errors
Investigation: Determine which category caused your listing to implement appropriate fixes.
Was the ship hijacked (technical) or carrying illegal cargo (behavioral)?
Need personalized help?
Diagnose why you're blocklisted and how to fix it. Open an AI assistant with your question pre-loaded — just add your details and send.
Was this answer helpful?
Thanks for your feedback!