Important Notes & Upgrade Information
Back up before upgrading. Axigen X4 starts a series of storage upgrade jobs. As always, we strongly recommend you to perform a full Axigen backup on your current version before the upgrade.
Performance impact on initial index creation / upgrade. This version has a number of index changes: the sort indexes have been modified and will be recomputed at upgrade time; in addition, we have introduced a new conversation index — used for the new conversation view — which will also be computed in sequence, after the sort indexes. These upgrade jobs are expected to last a few hours (depending on your storage size) and will require a storage capacity increase of up to 10%. WebMail and IMAP user access is conditioned by the sort indexes, while the conversation indexes are only used by the WebMail. Until they are created, users will be able to use the WebMail in mail view.
Kaspersky End of Life. Starting with X4 (10.4.0), Kaspersky AntiVirus and Kaspersky AntiSpam are no longer available. We recommend Kaspersky customers to switch to Axigen AntiVirus & AntiSpam (powered by Cyren). Contact our sales team for a commercial offer.
Outlook Connector End of Life. Starting with X4, the Outlook Connector will no longer be supported. We've put a lot of additional effort in the Axigen WebMail, which is now our main recommendation in terms of clients. Alternatively, for users who still want to stick with Outlook, you can use it via IMAP; for calendar support, some of our end-users are already using the CalDAV Synchronizer plug-in.
Custom WebMail themes. As part of the new Dark Mode support, we've introduced significant changes to the existing WebMail stylesheets, including an extended range of colors. If you're using a customized WebMail theme, you will have to extend and adapt your customizations to also apply in Dark Mode.
No longer supported platforms. The following platforms are no longer supported: CentOS 7, CentOS 8, Red Hat Enterprise Linux 7, Oracle Linux 7, OpenSUSE Leap 15.1, Ubuntu Server 18.04 LTS, OpenSUSE Leap 15.3, Debian 10, Windows Server 2016.