Server software that makes your email infrastructure scalable, is rich in functionality and easy to manage.
Do you struggle to keep up with the competition from Gmail and other mailbox providers? Halon Platform is the most flexible MTA you will ever experience, and it will save you from the complexity, the compromises and the maintenance that comes with a home-brew email infrastructure.
Is your current anti-spam solution less than great? Halon is bundled with anti-spam and anti-virus from the widely known, much used and well-reputed Cyren and Sophos. Increase catch-rate and customer satisfaction when you switch to Halon Platform.
Do you hesitate to replace an email infrastructure that you know how to handle? Halon Platform has integration for the leading web hosting panels, such as cPanel, Plesk and WHMCS, as well as billing platforms. You will always be able to customize it any way you prefer.
Update your entire in-transit email platform with a few clicks. Avoid regressions, broken dependencies or updating many small software components in different systems. Using a dual-boot partition scheme, updates are quick and reliable.
Multi-tier filtering with integrated anti-spam and anti-virus from CYREN and Sophos, with support for many others. The combination with in-line filtering (reject) make your customers stop worrying about losing genuine email.
Add-on software to use or build upon; logging server (also for end-user access), reCAPTCHA-based self-service spam release, a proxsmtp fork for transparent anti-spam and our popular smtpping tool. All available on GitHub.
Handle outbound anti-spam, abuse control, brute-force protection, and much more, with the rate limit function. It provides high accuracy using a sliding-window, and fast, non-blocking cluster synchronisation.
Handle compromised and abusive accounts to avoid blacklisting, without bothering legitimate users. Combine the clustered rate limit with anti-spam and delivery failure, queue length per user or website, and use multiple classes of source IPs.
Get customised charts and counters for comprehensive delivery reporting and analysis using scriptable, clustered reporting. External logging to databases using background HTTP/JSON, SQL or Elasticsearch provides fast and convenient message tracking.
An SMTP server that supports everything from SMTPUTF8 to XCLIENT and PROXY. It implements the scripting via hooks on connect, AUTH, MAIL, RCPT and end-of-DATA. The SMTP/LMTP client implements pre- and post-delivery script hooks.
Implement and integrate any custom SASL authentication mechanism and infrastructure, such as OAUTH2, as a complement to username and password authentication.