–Use my global return receipt preferences for this account switch: A read notification adds a prompt to your message to notify you when the recipient has opened the message. Your global read notification settings can be viewed by clicking the Global Preferences button.
–Global Preferences button: customize read notifications for all accounts.
–Customize return receipts for this account option: enable notification settings for the current account if you want to use other settings for that account. The settings available here are the same as the global settings, but they will only apply to the current account.
–When sending messages, always request a return receipt checkbox: request a notification when the recipient reads the email.
–When a receipt arrives switch: select the read notification action.
–When I receive a request for a return receipt switch: select the method for processing a read notification request.