Emails often fall into the Promotions tab when the email service thinks the message is mainly for sales. Many images, several links, or certain sales words can trigger that filter. A simpler approach that looks closer to a regular conversation can help. Some people send plain text messages that read like normal communication between two people. This signals that the message is meant for reading, not just selling. A steady sending pattern also helps because sudden bursts can look promotional. Testing shorter messages with fewer design elements often improves placement. What changes have you seen people make that helped their emails reach the main inbox?