Having been using Thunderbird for years, I'm considering switching to Mail. Does eithe rhave significant advantages/disadvantages. And, some quick points: 1 Can Mail by default display all messages as plain text rather than html? I see than I can change them individually but haven't found a way to do that for all. 2 Can Mail have the shading on alternate emails when viewing the inbox? 3 In Thunderbird, each account has in/sent/etc within the account, whereas Mail displays all in mail in a single inbox. Can this be configged to behave as Thunderbird?