When you create or edit a Quick Step to send an email message to an address by using a POP3 account in Microsoft Outlook 2010, the addresses in the Outlook Contacts folder are not listed. Instead, the addresses are from the Windows Contacts folder.
For example, this problem can be seen by following these steps:
In the Quick Steps control, click Create New.
In the Actions drop-down list, select New Message.
Click To …
When you click To…, the Address Book: Global Address List dialog box appears. This dialog box displays the lists of contacts from the C:\Users\username\Contacts folder (in Windows 7).
To work around this problem, manually enter the email address of the recipient that you want to specify for your Quick Step. If you have to specify more than one recipient, separate the email addresses by using a semicolon (;), as shown in the following figure.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.