There are several Outlook settings which need to be updated where lifestyle-prod.com to lprodusa.com.
1) Select the “File” tab at the top of your Outlook.
2) Click the “Account Settings” button and select the “Account Settings” option from the drop down.
3) Select your email account and click the “Change” button.
5) Change lifestyle-prod.com to lprodusa.com on both the "General" tab as well as the "Outgoing Server" tab.