IceWarp Server WebClient Administration
This section outlines what you need to consider before you make the switch, when you should do so, and how to prepare for the
move. It also recommends ways to accomplish the migration with minimal impact on your end users.
IceWarp WebClient requires an up-to-date license for both the IceWarp WebClient and IceWarp Email Server modules (i.e. new
or recently updated, with a renewal period of both greater than zero). This is because of close integration of client and server
sides. The new IceWarp WebClient will not run with any version prior to version 9 (excluding release candidates).
WebMail Standalone cannot be upgraded to IceWarp WebClient. Since the announcement of end-of-life last year, it was only
available without upgrades and with time limited technical support. And vice versa, IceWarp WebClient cannot be used as a
standalone web interface to 3rd party mail servers. Request a quote to migrate to a complete IceWarp solution at a very
IceWarp WebClient is by default served by the integrated, free of charge, Web Service module, but can also be run under Apache
or IIS, provided that it's run on the same server as IceWarp Server, as all internal communication is performed locally. This is a
new condition compared with classical WebMail without GroupWare & Calendaring features (plain email client).
IceWarp WebClient depends heavily on calendaring capabilities. It is required that the GroupWare module to be installed and
running for these capabilities. If a GroupWare license is not present, any sharing capabilities, including Global Address List, will be
disabled as a result (i.e. user will only be able to see his/her own calendar events, contacts, notes, folders, etc.).
Emails, folders and files are always stored in file system on the server and therefore do not require any changes when you are
switching from one client interface to the other.
Other user data (e.g. calendars, tasks, contacts) are stored in a dedicated database on the server. If you already have a license for
GroupWare, this data should already be stored in the GroupWare database on the server. No additional steps need to be taken.
In the case that a license for GroupWare module was not present on the server (or if configured that way by the administrator),
Address Books (User and Global) stored in plain-text .dat files need to be manually converted into database storage. IceWarp
WebClient is equipped with a conversion script to simplify this process, see the Converting Plain Text Address Books to
GroupWare Database chapter.
By default, IceWarp Server installs an SQLite database for GroupWare that is suitable for a maximum of 500 users.
If you have not previously used the GroupWare module, you will need to setup the database engine for servers expecting more
than 500 users.
SQLite is recommended for up to 500 users, MySQL or MS SQL for higher amounts.