Fill in the blank: Words like “free” or “percent off” may not trigger spam filters for your email, but could ___________.

While words like "free" or "percent off" don't inherently trigger spam filters, they are often associated with spammy or unsolicited emails. If an email's content heavily features these terms without proper context or a clear sender, recipients might perceive it as an automated message rather than a legitimate communication from a human. This perception can lead to lower open rates and engagement, as users are more likely to ignore or delete emails they suspect are bot-generated. Higher unsubscribe rates are a possible consequence, but the primary immediate impact is the perception of bot-generated content. Triggering fewer sales is a potential outcome of this perception, but not the direct impact of the word usage itself. Aligning with coupon content is a positive, not a negative, effect.