How would you go about building your own email marketing system like Mailchimp?

• Listmonk

  73 13,381 9.3 Go

  High performance, self-hosted, newsletter and mailing list manager with a modern dashboard. Single binary app.

Yeah, "don't" is the correct answer. If you're looking for something feature-rich, production-ready and easy to integrate with, I'd say go with listmonk. Plug in any SMTP server(s) you like and you should be golden.

• Keila

  16 1,186 8.7 Elixir

  Open Source Newsletter Tool.

  

Someone on r/selfhosted built an alternative for Mailchimp called Keila a while ago. (https://github.com/pentacent/keila). I haven't tried it myself but this sounds promising. You can use your own mailserver with it (which I recommend you do not selfhost for business purposes). As it is licensed right now, it should be way cheaper to use this instead of Mailchimp.

• WorkOS

  workos.com sponsored

  The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.

  

• laudspeaker

  34 1,393 9.8 TypeScript

  📢 Laudspeaker is an Open Source Customer Engagement and Product Onboarding Platform. Open Source alternative to Braze / One Signal / Customer Io / Appcues / Pendo . Use Laudspeaker to design product onboarding flows and send product and event triggered emails, sms, push and more.

  

laudspeaker: https://github.com/laudspeaker/laudspeaker

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