Open Source Sendgrid Alternatives

    The best open source alternative to Sendgrid is Mailwhale, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to Sendgrid and three of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Sendgrid are Postal (Free, Open Source) and Cuttlefish.io (Free, Open Source).

    This page was last updated Aug 17, 2021

      • FreeOpen Source
      • Online
      • Self-Hosted
      A bring-your-own-SMTP-server mail relay with REST API.
      • FreeOpen Source
      • Linux
      • BSD
      • Self-Hosted
      The open source mail server - Postal is a complete and fully featured mail server for use by websites & web servers. Think Sendgrid, Mailgun or Postmark but open source and ready for you to run on your own servers.
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    1. Cuttlefish offers basic bounce email handling, ensuring you maintain your good mail reputation by not resending to bounced addresses.
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    Showing 3 of 3 alternatives