The QmailToaster is an RPM-based Qmail distribution for CentOS, Fedora, SuSE, and Mandriva. This system is designed for ease of deployment and includes strong anti-spam systems. This includes support for SRS, SPF, DomainKeys, and virtual hosting on the SMTP side. On the user side, this has a Web-based administration interface and supports POP3, POP3 over SSL, IMAP, and IMAP over SSL.
sqwebadd remotely imports an address book in CSV format into sqwebmail. The user will be prompted with the fields from the first line of the CSV file to assign them to the corresponding sqwebmail fields. A known limitation of this is that sqwebmail offers multiple addresses on one nick, so if the nick already exists, the corresponding address will be added to that nick. Conversely, if the address already exists, it will be added anyway. Another limitation is that sqwebmail does not recognize firstname and surname fields, so you should ensure that the CSV file contains one field with the full name.
Scalix Community Edition Raw (CE Raw) is functionally equivalent to Scalix's Community Edition software except that its components are individually available, making it easy to customize. It includes manual installation instructions via a community Wiki, with links to required third-party components. It is available for the Debian Linux distribution as well as Red Hat and SUSE Linux. The intent is to make it easy for Linux system admins, developers, and enthusiasts to to adapt an email and calendaring system for their needs and the needs of the community.
Scalix Community Edition is an email and calendaring platform. It includes a full version of the Scalix industrial-strength server and AJAX-based Scalix Web Access (SWA), a cross-browser, cross-platform Web client. Community Edition also includes 25 free premium users that can use MS Outlook for email and group scheduling.
Infotrope Polymer is a fully roaming online IMAP client. You can roam with your full configuration, your addressbooks, and even your bookmarks. It's fully ACAP enabled, and will operate with or without a local disk cache, and over very narrow connectivity (like GPRS), using minimal bandwidth. It supports the majority of extensions to ESMTP, IMAP, and ACAP, whether in RFC or I-D.