Hi,
I am not comparing FASTMAIL and Apple Mail here, only the simplicity of the Apps: with Fastmail, when writing a mail, you can directly attach a picture from your Photo Library and that's done! The guy who will receive this email will receive a .jpg File, that's it.
On the other Side, with Apple Mail, it's not possible!! When writing a mail (from your iPhone), you do not have a button giving you the possibility to attach files or photos or whatever you want .... just a fact! So, even if it exist a possibility (available for Nerds), one should accept at least the fact that it is not user friendly at best!
Moreover, when I read that turnaround solutions consist in saving a photo and then, taking it as an attachement (How?) to send it?? Is that a solution? Are you serious? And if I need to send for example 5 or 6 photos, do i need to repeat this process?
Apple used to offer those straight foreward and simple actions in the past, but it is simply not more the case. Apple was the mostinnovative, by far, but this time is already since long time over as numerous other companies equal or surpass this company now ..... That's a bit of a pity to my opinion regarding the past success of Apple ....