Just because you hit send doesn't mean your email reaches the inbox. Spam score measures how likely your email is to be caught by spam filters. It's determined by factors like your email language, subject line, number of links, suspicious code, and sender reputation.
Words like "FREE," "Buy Now," and "Limited Time Offer" in all caps raise your spam score. So does sending to unengaged lists or having poor authentication settings. To keep your spam score low, use a reputable email platform, properly configure DKIM and SPF, write natural subject lines, and regularly clean your subscriber list. A good spam score means your emails land where they belong — the inbox.