I was about to suggest iCloud, but it does not support some features that may be of interest to HN type users: in particular, "email personalities" - the abilit

I was about to suggest iCloud, but it does not support some features that may be of interest to HN type users: in particular, "email personalities" - the ability to send outgoing email through the iCloud SMTP server using any of your various non-me.com email addresses.