file attachment in webmail of plesk

Question

I use plesk control panel for my windows server .i give this error when attach a file with webmail.

This feature (add attachment) is only available to licensed installations of MailEnable. The license key is either missing or invalid.

have any idea for this problem .

Answer 1

[update]

Looks like bug in MailEnable 8 installation http://forum.mailenable.com/viewtopic.php?f=2&t=26241

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For a quick solution you can switch domain's webmail to Horda Webmail Client, but in this case all of specified settings of this webmail client like Calendar, Address book, Notes etc will not transfered to new webmail.