Auth0 Token Vault handles secure token storage, exchange, and refresh for external providers so you don't have to build it yourself.
Rolling your own OAuth token storage can be a security liability. Token Vault securely stores access and refresh tokens from federated providers and handles exchange and renewal automatically. Connected accounts, refresh exchange, and privileged worker flows included.
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SIMON is a very simple MTA and POP3 implementation. It is completely designed from the ground up and is useful for departmental or small to medium sized companies.
SPAM-Buster is a Java application for filtering SPAM based on statistical algorithms (currently Bayesian). The platform independant application can be used as graphical end-user client and additional service for mail server.
A user-centric Java Mailet for the Apache James mail server (a Java mail server) for the purpose of filtering spam using a naive Bayesian algorithm. As a Mailet, the filter can act upon spam as it is received over SMTP before the user gets it.
Quick Mail Project is Mail Server with Web mail. The project is independed platform support designed Using Java ,C, PHP ,MySQL database . Its support RFC SMTP protocol , RFC Internet Message, Multi domains, forward, block, spam bulk and a lot more.
AppSignal's MCP server hands Claude, Cursor, or Zed your real errors, traces, and the deploy that shipped them. AI writes the fix; you review the diff.
Jamama is a Java Managed Mail Server. The functionality is inspired by
the excellent excellent mail server Exim, but takes advantage of several
Java features for runtime configuration and pluggability.
JEM is an SMTP server with pluggable components that let you
process email in any way you like. It can also extend beyond
emails into generalised message processing (like JMS) and can
even generate its own messages based on a Cron-like facility.
Welcome to the project page of the Open JMail Server - a scalable Java email server. Features POP, SMTP, IMAP, dynamic pluggable storage design, modular protocol handling, easy XML configuration and much more.
Ichabod is an SMTP/POP3 server, with mailing list support. Administration is via a web, or email
You can also use Ichabod to make your app receive email as an SMTP server.
You can also easily extend it by subclassing to add your own behaviors.