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. Postal was developed by aTech Media to serve its own mail processing requirements and we have since decided that it should be released as an open source project for the community.
The application has been running in production for us for nearly 6 months and we will be continuing to use it ourselves and support its ongoing development. If you have any questions about getting up and running, just post an issue.
By @JoshData and contributors.
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.
Please see https://mailinabox.email for the project's website and setup guide!
Our goals are to:
Additionally, this project has a Code of Conduct, which supersedes the goals above. Please review it when joining our community.
Mail-in-a-Box turns a fresh Ubuntu 18.04 LTS 64-bit machine into a working mail server by installing and configuring various components.
A fullstack but simple mail server (smtp, imap, antispam, antivirus...). Only configuration files, no SQL database. Keep it simple and versioned. Easy to deploy and upgrade.
At this point we have merged the next branch based on Debian Buster into master. That means the docker image latest uses Buster. The change may break things!
The following possibly breaking changes are known:
If you want to stick to the old version a while longer, either switch to stable or to a specific version. If you run into problems, please raise issues and ask for help. Don't forget to provide details.
Catches mail and serves it through a dream.
MailCatcher runs a super simple SMTP server which catches any message sent to it to display in a web interface. Run mailcatcher, set your favourite app to deliver to smtp://127.0.0.1:1025 instead of your default SMTP server, then check out http://127.0.0.1:1080 to see the mail that's arrived so far.
Use mailcatcher --help to see the command line options. The brave can get the source from the GitHub repository.
Please don't put mailcatcher into your Gemfile. It will conflict with your applications gems at some point.
listmonk is alpha software and may change and break. Use with caution. That said, it has been in active use at zerodha.com for several months where it has processed hundreds of campaigns and tens of millions of e-mails.
listmonk is a standalone, self-hosted, newsletter and mailing list manager. It is fast, feature-rich, and packed into a single binary. It uses a PostgreSQL database as its data store.
See the configuration Wiki page.
You can pull the official Docker Image from Docker Hub.
You can checkout the docker-compose.yml to get an idea of how to run listmonk with PostgreSQL together using Docker (also see configuring with environment variables).
Haraka is a highly scalable node.js email server with a modular plugin architecture. Haraka can serve thousands of concurrent connections and deliver thousands of messages per second. Haraka and plugins are written in asynchronous JS and are very fast.
Haraka has very good spam protection (see plugins) and works well as a filtering MTA. It also works well as a MSA running on port 587 with auth and dkim_sign plugins enabled.
Haraka makes no attempt to be a mail store (like Exchange or Postfix/Exim/Qmail), a LDA, nor an IMAP server (like Dovecot or Courier). Haraka is typically used with such systems.
Simple, modern & fast web-based email client.
Modest system requirements, decent performance, simple installation and upgrade, no database required - all these make RainLoop Webmail a perfect choice for your email solution.
For more information about the product, check rainloop.net.
Information about installing the product, check the documentation page.
RainLoop Webmail (Community edition) is released under GNU AFFERO GENERAL PUBLIC LICENSE Version 3 (AGPL). http://www.gnu.org/licenses/agpl-3.0.html
Mailu is a simple yet full-featured mail server as a set of Docker images. It is free software (both as in free beer and as in free speech), open to suggestions and external contributions. The project aims at providing people with an easily setup, easily maintained and full-featured mail server while not shipping proprietary software nor unrelated features often found in popular groupware.
Most of the documentation is available on our Website, you can also try our demo server before setting up your own, and come talk to us on Matrix.
All your E-mail, from all your accounts, in one place. Cypht is not your father's webmail. Unless you are one of my daughters, in which case it is your father's webmail. Cypht is like a news reader, but for E-mail. Cypht does not replace your existing accounts - it combines them into one. And it's also a news reader.
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The driving force behind Cypht development is to provide combined views for multiple accounts, but it's also a standard E-mail client that lets you browse and manage IMAP folders (or POP3 inboxes), and send outbound messages with SMTP.