The only reason it 'doesnt' work is that you then have to handle mail on the same hosts as web and https; Many consider that to be bad practice. I can put all

The only reason it 'doesnt' work is that you then have to handle mail on the same hosts as web and https; Many consider that to be bad practice. I can put all many gigs of email in a flat file called 'mbox' -- that doesn't mean it's a good idea. The 'traditional' way to handle this without doing all kinds of nasty, is to simply use the standard A/MX combo and either proxy/redirect back to the 'www' version. slashdot.org has been doing it for years as 'proof' though, so, congrats?