To set up Outlook 2010 for IMAP, perform the following steps:

1. In Outlook, click the File tab.
2. Click the Account Settings button, and select Acount Settings.
3. Click the New button.
4. Click the Manually configure server settings or additional server types option button.
5. Click the Next button.
6. Ensure that the Internet E-mail option button is selected, and click the Next button.
7. Enter the following information:
     
   • Your Name—Enter your first and last name. This is the name that will appear in the From field of messages you send.
   • E-mail Address—Enter your entire email address (e.g., myname@mydomain.com).
   • Account Type—Select IMAP from the drop-down menu.
   • Incoming mail server—Enter the secure server name:
     secure.emailsrvr.com
   • Outgoing mail server (SMTP)—Enter the secure server name:
     secure.emailsrvr.com
   • User Name—Enter your entire email address (e.g., myname@mydomain.com).
   • Password—Enter the password for your email account.
   

8. Click the More Settings button.
9. Click the Outgoing Server tab.
10. Select the My outgoing server (SMTP) requires authentication check box. Leave the default setting, Use same settings as my incoming mail server.
    
11. Click the Advanced tab.
    
12. In both of the Use the following type of encrypted connection drop-down menus, select SSL.
13. In the Incoming server (IMAP) box, enter the secure incoming port: 993
14. In the Outgoing server (SMTP) box, enter the secure outgoing port: 465..
    If you are unable to use port 465, you can use one of the following alternate SMTP ports: 587 or 8025.
15. Click the OK button.
16. Click the Next button.
17. Click the Finish button.
18. Click the Close button.

IMAP Folders
Folders should sync automatically with an IMAP account; however, if you have added folders in Webmail and they are not showing in Outlook, perform the following steps:

1. Right-click the account name in the folder list panel.
2. Select IMAP Folders.
3. Click the Query button.
4. Select the newly added folder(s), and click the Subscribe button.
5. Click the OK button.
6. Restart Outlook to update the folder list.
7. Confirm that you see a Spam folder.
   If you do not want an IMAP Spam folder, request your mail server administrator or VMS/TactiCom to change your spam filtering. Spam settings available are to disable spam filtering on the server, forward spam to another e-mail address, or appended [Spam] to the subject of suspected spam messages. You can create a local outlook filter to filter messages with [Spam] in the subject line.

Don't forget to remove your old Virtual Mail Servers account!