To enhance speed or work faster on a slow connection there is a way to send emails more efficiently. Instead of sending email to individually selected people, try creating a Contact group.
1. On the bottom left hand side of Outlook 2010, under the tab for mail and calendar, select contacts. After selecting the contacts tab, look for the tab that says New Contact Group. It is located at the upper left hand side of Outlook.
2. You can then select Add Members and find emails for your contact list from Outlook contacts, Address Book or New E-mail Contact.
3. After you do this, click OK and the contact group is saved under Contacts folder with the name you give it.