Modoboa – open-source email server

• Mail-in-a-Box

  183 13,324 8.8 Python

  Mail-in-a-Box helps individuals take back control of their email by defining a one-click, easy-to-deploy SMTP+everything else server: a mail server in a box.

  

I have switched from zimbra (community) to MailInABox (https://mailinabox.email) and can say that a cheap five euros per month ssd-shared-4-virtual-cpu can manage as much as 1000nds of mails per day in and out for dozens of users with ease. So far I had not issues with spam classification, also due using a .de and .net email domain. (See stories about the infamous .xyz domains for reference)

• wildduck

  15 1,835 9.2 JavaScript

  Opinionated email server

  

• SurveyJS

  surveyjs.io featured

  Open-Source JSON Form Builder to Create Dynamic Forms Right in Your App. With SurveyJS form UI libraries, you can build and style forms in a fully-integrated drag & drop form builder, render them in your JS app, and store form submission data in any backend, inc. PHP, ASP.NET Core, and Node.js.

  

• chasquid

  12 848 8.3 Go

  SMTP (email) server with a focus on simplicity, security, and ease of operation [mirror]

• Haraka

  16 4,850 8.4 JavaScript

  A fast, highly extensible, and event driven SMTP server

  

• docker-mailserver

  92 13,382 9.4 Shell

  Production-ready fullstack but simple mail server (SMTP, IMAP, LDAP, Antispam, Antivirus, etc.) running inside a container.

  

• zone-mta

  1 577 7.9 JavaScript

  📤 Modern outbound MTA cross platform and extendable server application

  

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