You can install on the server a number of webmail software packages and select which of them should be available to your users. Alternately, you can redirect your users to an external webmail service. To do this, register an external webmail service address with Plesk by adding a corresponding record.

All installed webmail packages and registered external webmail services are listed in the mail settings of hosting plans and subscriptions (in the Mail section). There you can select which webmail to provision to users.

Supported Webmail Software

By default, Horde and RoundCube webmails are installed on Plesk for Linux, and only Horde is installed on Plesk for Windows. Plesk for Windows also supports the following webmail clients:

  • MailEnable Web Client
  • SmarterMail Web Client
  • IceWarp (Merak) Mail Server Web Client

Note: If you offer RoundCube to your customers, keep in mind that Plesk backups do not include backups of the RoundCube database. This means that RoundCube data such as customers’ calendars and contacts is not restored upon restoration of selected subscriptions or the entire server.

External Webmail Sevices

To register an external webmail service:

  1. Go to Tools & Settings > Webmail (in the Mail group).

  2. Click Register Webmail.

  3. Specify the following:

    1. Webmail service name.
    2. Webmail service URL. Specify an address that begins with the http:// or https:// prefix.
    3. Leave the Available checkbox selected to make the registered webmail service available for selection in hosting plan settings.
  4. Click OK.

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To change the properties of an external webmail record:

  1. Go to Tools & Settings > Webmail (in the Mail group).
  2. Click the appropriate link in the Name column.
  3. Make the required changes and click OK.

To make a webmail service unavailable for inclusion into hosting plans:

  1. Go to Tools & Settings > Webmail (in the Mail group).

  2. Do either of the following:

    • To make a service temporarily unavailable without actually removing it, select the corresponding checkbox and click Disable.

      This works for installed webmail software packages and for links to external webmail services.

    • To permanently remove a service record, select the corresponding checkbox and click Remove.

      This way you can remove only links to external webmail services. Installed software packages can be removed only by means of Plesk Installer (Tools & Settings > Updates).