Delivery reports: Checkmark this setting to allow your phone to receive delivery reports for the multimedia messages you send.
Auto-retrieve: Remove the checkmark to download only the heading of multimedia messages, allowing you to manually download the whole message when you’re ready. This is useful for controlling how much data you download.
Roaming auto-retrieve: Checkmark this setting to allow messages to be received even if you are roaming outside of the network.
Set priority: Opens a dialog box that allows you to set the default priority for your multimedia messages.