Postmark Alternatives

Sendinblue is an all-in-one marketing platform that empowers businesses to build customer relationships through email, SMS, chat, and automation. Affordable and easy to use.

Mailgun is a powerful set of APIs that streamline the process of sending, receiving, tracking, and storing emails effortlessly. It offers easy integration and abstracts away the messiness of sending transactional or bulk emails, allowing you to A/B test and report on your data with ease.

Mailchimp is an all-in-one marketing platform that helps you design email newsletters, automate campaigns, track results and more. Grow your business smarter, faster and easier with Mailchimp.

Postal is a full-featured email server for use by websites & web servers. Postal is open source and ready for you to run on your own hosting. Postal is developed by Krystal to serve its own mail processing requirements and later opensourced.