It is a highly flexible and secure mail system that can handle a wide range of applications from large to small.
Halon MTA is a high-speed mail delivery system (MTA) that supports both sending and receiving mail. In addition to the essential functions for sending and receiving emails, customizable scripts and abundant libraries make it possible to realize a configuration that suits your environment and requirements.
High performance and fully featured
- Fast delivery performance
- Flexible queue management and control for each application using the virtual mail queue function
- Multiple IP address settings and allocation for each application (IP address segmentation)
- Cooperation with external API and external DB
Flexible flow control
- Control of the number of transmissions and the number of simultaneous connections per unit time such as for each source / destination IP address, each virtual queue, and each destination domain.
- Can be dynamically controlled according to the response (error content and number of errors) of the connection destination mail server.
- Counter information synchronization between clusters
- Ensuring mail reachability (mail deliverability) by various methods
- Connect, HELO / EHLO, MAIL, RCPT, end-of-DATA, disconnect SMTP phase and script execution before and after delivery
- Different scripts can be executed for each reception IP address and port.
- PHP, Python-like scripting language
- Abundant libraries are available
Supports the latest sender authentication / encryption
- Add DKIM signature when sending
- SPF, DKIM, DMARC verification at the time of reception
- Supports STARTTLS, SMTPS (SMTP over TLS), MTA-STS, DANE
Outbound spam protection
- Multiple source IP groups can be used, and different scripts can be applied to each.
- Limit control for each destination, SPAM transmission countermeasures, delivery error handling, queue handling for each website and user
- Prevents being registered on an external blacklist
Easy and safe introduction
- Multiple versions can be operated in parallel, and a new workflow can be applied without affecting emails during delivery processing.
- Visualize changes with revision management
- Rollback support when problems occur due to revision management
Aggregate multiple MTAs installed for each service or email type.
Other functions and features
|Highly accurate anti-spam and anti-virus||
|Support for encryption standards||
|Powerful reporting and logging||
|Flexible queue management||
|Large scale support||