A Few Additions Needed in Version 7

  1. Archive button for all types of accounts, not only GMail
  2. Send and Archive button
  3. Option to rebuild search index for better search results (I find the current searching of emails really poor).
  4. Customisable toolbar
  5. A better notification pop-up. Graphically, the current one looks really dated.

Hello Keith,
thank you for sharing your ideas. I can assure you that at least the notifications (as the whole Graphic design and interface) of version 7 are much neater and modern looking already, and the customisable toolbars are coming as well.
As for the other ideas, those will be found here by developers when they look for new features to improve and implement in future updates.
To see all upcoming new features for version 7 I recommend following our Blog or Facebook.