======Calendars======
To use the calendar facility in VPOP3 you need a CalDAV aware client. We have tested it with the free [[http://www.mozilla.org/projects/calendar/sunbird/|Mozilla Sunbird]] & [[https://addons.mozilla.org/en-US/thunderbird/addon/lightning/|Lightning]] products as well as the [[http://www.pscs.co.uk/products/emclient/index.php|emClient]] email client.

These products need a URL to be able to access the CalDAV data store. Once you have the URL (see below), copy it into the URL section in the CalDAV client, and enter any other settings required by the client (eg your username/password) and that should be it.

=====Configuring a calendar client=====
  * [[iCal on Mac OSX]]
  * [[Calendar on iOS]]
  * [[Calendar in Mozilla Lightning]]
  * [[SimpleCal]] for Windows ([[http://www.ligaturetech.com]])
=====Managing calendars=====
Calendar management takes place in [[reference:version 4 webmail|VPOP3 webmail]].

Since version 5, calendars are managed via a dedicated [[reference:calendars tab|Calendars tab]]. You can access this via ''Tools -> Calendars''.\\
In version 4, to access the calendar settings, go to ''Tools -> Settings -> Calendars''.

The following table details how to perform key tasks in versions 4 and 5.

|  ^^//How to//  ^^//Requirements//  ^^
^  //Action//  ^^  //Version 4//  ^  //Version 5//  ^  //Version//  ^  //Other//  ^
^Finding the calendar URL ||Select the calendar; the URL is displayed beneath the grid |Select the calendar, then click **Properties**. View the line, labelled **URL**. |Basic or Enterprise |None |
^Creating a new calendar  ||Click **New...**, enter a calendar name and click **OK**. |Click **New calendar**, enter a calendar name and click **OK**. |Enterprise  |User permission (set by Administrator) |
^Deleting an existing calendar ||Select the calendar, click the **Delete** button. If you are sure, click **OK**. |Select the calendar, click the **Delete calendar** button. If you are sure, click **OK**. |Enterprise |Calendar owner; not the default calendar |
^Sharing a calendar ||Select the calendar, click the **Share** button. |Select the calendar, click the **Share calendar** button. |Enterprise |Calendar owner |
|-> |Adding a permission setting |Permissions can be set for users, groups or everyone ("Anyone"). The possible permission rights are "Full", "Update", "Read", "None".  Click **Add Permission**; a new row will appear - double-left click into each of the cells in that row, in order to specify the //Type//, //Name// (if applicable) and //Rights//. || | |
|-> |Removing a permission setting |Select the permission row in the grid, then click on **Remove Permission**. Alternatively, double-left click into each of the cells for that row and change the values, to apply a different setting. || | |
^Creating a 'global' calendar ||There is not a specific facility for a global calendar. Instead, a calendar which belongs to a particular user must be shared with everyone. This could be any user's default calendar, but it is likely you will want to create a new calendar specifically for this purpose. A user can create a new calendar (see above), then share it with the following permission: Type - **Anyone**; Rights - **Update**. This would create a calendar that all users are able to read and write to. ||Enterprise |One user to host the calendar |