The article provides an overview of five Mailgun alternatives, including Postmark, SendGrid, Mailchimp Transactional, Amazon SES, and MessageBird. The author of the article is a competitor to Mailgun and has compiled a list of recommended alternatives based on their own experience and expertise. Each alternative is evaluated based on its features, pricing, and customer support. The article highlights the strengths and weaknesses of each provider, including Postmark's focus on transactional email, SendGrid's comprehensive platform, and Amazon SES's cost-effectiveness. MessageBird is also compared to SendGrid in terms of high-volume sending capabilities. The author concludes by recommending Postmark as a reliable alternative for businesses looking for a secure and scalable email delivery solution.