I am what we could call an apple addict. I have a mac mini with two monitors, a macbook pro, an iphone that I sync on iCloud and my parents too. I use a lot of app, Calendar, Contacts, Plans, ... because they work without internet and each devices can sync with iCloud at any moment. For instance I share my calendar with my parents and it's really convenient. But let's talk about Mail.
I have many mailbox working with IMAP : university, personal, pseudo, gmail, trash, icloud
But except for my iCloud mailbox, this app is annoying : - I keep receiving spam even if I mark them. - When I use different flags on my computer, only one flag exists on iPhone. - I can't sync any mails on my iPhone sent by my computer. - I am obliged to delete one spam at a time, because when I delete a few amount of spams it doesn't work (they come back omg).
What about you ?
As my iphone doesn't work with iOS8 and Yoshemit is up, I'm thinking to move to a more efficient system and cheaper ... So do you think using Ubuntu + Android + Google Apps would be better ?