EmailArchitect Email Server is a reliable solution that supports multiple protocols and features such as domainkeys/DKIM, anti-spam/virus modules, and mailing list service. It also has a web admin interface, global and private address books, and supports multiple languages. Additionally, it includes an SDK for customization.

One of the standout features for me is that it supports multiple domains and unlimited users. It also supports protocols such as SMTP, POP3, IMAP4, SSL/TLS, HTTP, DomainKeys and DKIM. There are comprehensive customized spam/virus filters in place, supporting regular expression and a real-time blacklist service that can effectively block 99% of unwanted mails.
The Emailarchitect Email Server has a web administration and webmail with rich text composer and message preview. This feature supports multiple languages, RTL, global and private address books, and message approval function. In addition, there is a mailing list service and POP3 pull service as well.
The built-in failsafe system incorporated with the server is like the cherry on top, enhancing its stability and reliability to achieve zero downtime. Free system tools such as "backup tool" and "scripting utilities" are provided to facilitate your mission-critical tasks like data backup and system migration.
To further enhance the power against spam, the EmailArchitect Software Development Kit (SDK) allows users to developer customized filter dll. This SDK can also facilitate developers to create modules to automate additional administrative tasks.
Recently, the software has added more exciting new features like total outbound connections throttling, outbound traffic throttling, and SMTP outbound monitor in SMTP Service. You can disable remote forwarding option for domains and users and increase user quota limit as well. There's also an improved mailbox storage that can prevent duplicated emails. You can enable and disable GFilter, domain rules, and user rules too with the Emailarchitect Email Server.
Other noteworthy features to look out for are the user password policy, top message senders in journal, and the ability to move specified emails in WebMail. The software has also improved the Web Mail interface, making it much more user-friendly.
Overall, I give the Emailarchitect Email Server my highest recommendation. It is a powerful software that is easy to use and offers great value for money. If you're in need of a reliable and feature-packed email server software with excellent customer support, Emailarchitect Email Server is the way to go.
Version 11.0.3.9: New features: Total outbound connections throttling, outbound traffic throttling and SMTP outbound monitor in SMTP Service; Disable remote forwarding option for domains and users; Increase user quota limit; etc...
Version 11.0: New features: Total outbound connections throttling, outbound traffic throttling and SMTP outbound monitor in SMTP Service; Disable remote forwarding option for domains and users; Increase user quota limit; etc...