Verify you can disable MPOD by adding the following user preference to the pref.js file. 30K. Send a attachment less than 30k. The attachment should not be downloaded. Verify you can change the default MPOD threshold. You want to add the following user preference.
Depth is defined as how many layers of forwarding there are.
Default is 15. If we are trying to parse the body structure of a message which goes deeper than this, we will stop parsing and revert back to a normal full message fetch. Send a sample MS Outlook message to test the default. Send a sample MS Express message to test the default. Verify the feedback given in the message that contains an attachment.