Most of iPhone Mail client never take in a count the "real" font type and size to compose mails. Please take it in a count!

A toolbar with 3-4 Space you can customise by existing folder or intelligent folder.

-> Support for Microsoft Office 365 (perhaps with calendar, contacts and tasks)
-> tags
-> flags
-> cloud services (Dropbox, OneDrive,

Gesture support exactly like Mailbox with snooze and folder gestures, along with the standard archive and delete, but with a whole file support section like Acompli. The ability to go through files per email in Acompli is really handy!

Don't need the calendar section like in Acompli, as I think everyone uses Fantastical or something similar for their calendar tasks.

Also, the ability to create folders like Mailbox would be great too!

Oh also, support for drafts...

Create the best interface in the world, mail App is the app that user use like facebook. Think diferent and make the change. I can help you with that, im ios programmer..

Unified login like Inky so that I only have to set up the Airmail app with my accounts one time, then I can log in on any device with Airmail app (Mac or iPhone in my case).

189 cloud is chinatelecom cloud，everyone who have telecom phone have a cloud

Double tap to enlarge paragraph to screen width. Makes for easier reading

Also it would be awesome to open all pictures at once (to be able to swipe right-left for next picture) and not close and open next ones.

When you have multiple items, it would be great if you could swipe to delete or archive (like a single message does) when you have multiple items selected - saves you having to then hit the 3 dot button and then select an archive or delete action.

Would be great to have a today widget showing the subjects in the "Todo" folder

As an iPhone 6 plus user, I probably wouldn't switch to Airmail from Apple Mail without this feature. A lot apps do not yet have this functionality, and it makes us (plus users) mad!

Calendar view for e-mail. Creates a timeline of when e-mails were received and opened.

When working with services such as zendesk or highrise, it is crucial that the e-mail body of a forwarded message contains a line:

From: <originalsender@address.com>

Because these services parse that information to allocate a forwarded message to projects resp. tickets.

No drag & drop of email groups?? That should be a simple fix to update so that when you send to like 35 people, you can drag the group folder from mac address book direct into cc: or bcc: Currently there is no way to do that.. just a long list of all your contacts in no particular order. ??

I am using google apps mail, it will be great to use google chat with my collegues via airmail.

Add mail templates(with subject and addresses) in mail.app there is Stationery. It useful when you need to send massage to multiple addresses and other option.