MailShield enhances your app’s security by blocking temporary, spam and disposable email addresses, keeping your user data clean and reducing spam.

A message user agent for Textbringer.

The core of Munificent, a game-bundle fundraising platform.

The admin section of Munificent

Mountable engine for exception logging and fingerprinting

NTLM auth adapter for Net::SMTP using rubyntlm gem.

Add-on for net-smtp gem to add NTLM support.

Messages are defined in editable liquid templates.

NitroID Strategy for OmniAuth.

ONLYOFFICE Helper Gem for GMail. Used in QA

ONLYOFFICE Helper Gem for iRedMail. Used in QA

email notification tool

Postgarnet is a lightweight SMTP client for sending emails through Gmail using Ruby. It allows full control over server connection and message headers, supports templates with dynamic payloads, and works out of the box with minimal setup. Designed with simplicity in mind, it's ideal for quick and flexible email sending in Ruby scripts and applications.

QAT's Ruby Logger customization.

A Rack middleware for automatic e-mail addresses munging.

Racknga is a Rack middlewares that uses Rroonga features.

A drop-in Rails UI for Redis.

Provides guest users functionality for Rodauth.

Sends newsletters to recipients

Schleuder is a group's email-gateway: subscribers can exchange encrypted emails among themselves, receive emails from non-subscribers and send emails to non-subscribers via the list. (Please note: For some platforms there's a better way of installing Schleuder than `gem install`. See <https://schleuder.org/schleuder/docs/server-admins.html#installation> for details.)