What the checker looks for
The tool checks for a short set of phrases sometimes used in unsolicited promotions, repeated exclamation marks, multiple links, and several all-caps words. It points out text worth reviewing; it cannot determine whether a message is wanted, lawful, authentic, or likely to reach an inbox.
Why a flagged word is not proof
Legitimate messages can use words such as “free,” “offer,” or “urgent.” Spam filters consider many signals—including sender reputation, authentication, recipient behavior, links, formatting, and message history—so a word-only scan is incomplete.
- Use a clear, accurate subject that matches the message.
- Send only to people who have agreed to receive your messages.
- Identify the sender and make unsubscribe choices easy for marketing email.
- Do not disguise links, claim false urgency, or promise results you cannot support.
A low score does not guarantee inbox delivery or compliance. A high score does not prove a message is spam. Review context and your email provider’s rules.