To export your contacts in Webmail 3/5:
Once logged in, click the Administrator Login.
By clicking it, it will open a new window that will show you the email address that is under your domain name. Click the 'Login' button for the email address you want to export the contacts.
A new window will open and show you the old webmail interface for that email account you choose. Click 'Contacts'.
Once you're on the Contact page, click the 'Export Contacts' and choose CSV then click 'Export'.
Import your Contacts into Webmail
Log in to the new portal: https://wm.mailanyone.net/
Select Contacts in the left-side menu.
Click Import in the top-right menu.
An Import contacts window will pop up; Webmail supports both CSV files and vCard.
Attach your exported contacts file and click Import.
Congratulations! Your contacts have been imported into the new webmail client!
Add Calendar Events
Calendar events from the old webmail client won't be migrated automatically so this will be a manual process for you. It may be easier to have two browsers open side-by-side to complete this process.
In the first browser, navigate to the old webmail client
Click on Calendar and use the arrows at the top to navigate through the calendar to find any events that need to be moved over to the new webmail client
In the second browser, navigate to the new webmail client
Click on Calendar
Select New event in the top-left
Enter the details of your event and click Save
Repeat steps 4-6 until all desired events have been moved over to the new webmail client