You can use different email settings for different purposes.  

To configure email settings for customer mailings that are different from those of receipts or notifications:

1.  Navigate to Administrative > Email Settings > Notifications. The Outbound Email Server Settings window will appear.
   
   
   Fields and options to complete in the Outbound Email Server Settings window include:

   From Name	The name that you want to appear as the sender of the receipt.  This will probably be your store name.  This also serves as the “reply to” email address.
   From Email	The email address from which the receipt is being sent.  This will be your store email account.
   SMTP Server*	The outbound server as provided by your email provider.  It will probably be an SMTP account.
   Port #*	The port number with which your email interacts.
   Server Requires SSL*	Whether the outgoing server requires a secure socket layer.
   Server Requires Authentication*	Whether the outgoing server requires authentication.
   User ID*	The email account’s user ID.
   Password*	The password for the email account.
   Test Connection	Sends a ping though the system to make sure settings are correct.
   Clear Settings	Allows you to clear email settings, which will effectively disable automated emails

2. Complete these fields with user and server settings (SMTP) provided by your email provider.
3. Select Test Connection to have a test email sent to you to verify set up is correct.
4. Click OK.