Thailand's email marketing landscape in 2026 shows steady growth with an increasing number of active users reaching 55 million. Businesses are expanding their email lists at an annual rate of 8.5%, reflecting rising digital engagement. The ROI of USD 42 per dollar spent underscores the effectiveness of personalized email campaigns in the Thai market, driven by mobile-friendly content and localized messaging.
Despite a moderate open rate of 22%, engagement levels are improving due to targeted segmentation and automation. Thai companies typically manage email lists averaging 3,200 contacts, indicating mature digital marketing strategies. As digital adoption continues, email remains a vital channel for customer retention and direct marketing, fueling further growth in 2026.