Best 2 Open Source Postmark Alternatives in 2025
Postmark is an email delivery service that sends your automated emails using modern technology. You can connect it to your website or app through their API or SMTP settings, and it handles the rest. Unlike regular email services, Postmark specializes in transactional emails - the important messages your customers expect right away.
Postmark
Listmonk
Listmonk
Listmonk is an email marketing platform that you install and run on your own server. Unlike cloud services such as Mailchimp, you download and host it yourself, which means you own all your data and pay no monthly fees.
SENDUNE
SENDUNE
SENDUNE is a tool that connects to your Amazon Web Services account to send emails and text messages. You can send marketing emails to customers, important business messages like password resets, and text messages all from one place.
