Permission to Calendar Access
1) Open WorldPosta control panel.
2) Click on Mailboxes in Hosted Organization section.
3) In Mailboxes page, click on the user that you want to edit.
4) Click on the tab Permissions.
5) Click on Add in the section Calendar Access a list of contact will appear.
6) Select contacts from the list, then click Add Contacts.
7) Click on Save Changes or Save Changes and Exit when you’re done.