The longer answer
Carrier filters apply pattern matching plus reputation scoring to cannabis-adjacent traffic. Words and phrases that look like spam — whether literally banned or just statistically associated with spam — silently degrade delivery.
High-risk categories: explicit slang (weed, pot, dope), urgency manipulation (ACT NOW, LIMITED TIME, expires today), price emphasis (BEST PRICE, CHEAPEST), unverified medical claims (cures, heals, treats), and shortened URLs from untrusted shorteners.
Compliant alternatives focus on customer benefit, brand voice, and trusted link infrastructure. The platform reviews every send for these patterns before it goes out and flags issues before they hit deliverability.