Before an email reaches a human inbox, it undergoes algorithmic scrutiny by open-source and proprietary spam evaluation engines. Chief among them is SpamAssassin the open-source benchmark used by major mail servers worldwide.
How Spam Scoring Works
SpamAssassin tests your email payload against hundreds of predefined rules. Every violation adds points to your score. The higher your score, the higher the likelihood your email gets redirected to spam or rejected outright.
"A SpamAssassin score below 3.0 is required for consistent primary inbox placement."
Common Payload Violations
- Low Text-to-Image Ratio: Emails containing large graphics or flyer images with very little HTML body text score immediate penalties.
- Spam Trigger Keywords: Phrases like "100% free," "guaranteed profit," or "act now" trigger immediate point penalties.
- Broken HTML Formatting: Messy code pasted directly from word processors adds structural spam points.
- Missing Unsubscribe Options: Outbound business emails lacking clear opt-out links are penalized automatically.
Live Payload Analysis in SilaSend
With SilaSend’s integrated SpamAssassin Engine in the Asset Forge, you can analyze your template’s score prior to dispatch. SilaSend highlights triggering words and formatting flaws in real time, letting you fix risks before they impact deliverability.