My Mail app sends me to home screen when I open it

Question

Let me tell you what I have done after reading all of the threads on this forum about this issue.
• Closed the app mail and restarted it #RollEyes #duh
• Turning phone off and turning it back on
• Resetting Phone
• Removing all of the mail accounts from my mail app (using the Settings app), then re adding
• Removing all of the mail accounts from my mail app (using the settings app), then shutting down phone, then re adding
• Removing all of the mail accounts from my mail app (using the settings app), then resetting phone, then re adding
• Deleting all of my mail from the mail servers (using my computer) for the last two days, then "delete forever" all of that mail that I moved to the trash (my mail app stopped working today - so two days should cover it)
• Putting the phone in airplane mode
• Setting the phone to "data off"
I still get a mail app that "opens" then immediatly goes back to the home screen (the mail app is still "running" as I can see it when I double tap my home button to see the "running" apps)
I've been using apple products since I was 5 years old, family of electrical engineers, and I'm stumped. I love apple and the reason I've used their products is to avoid software malfunctions etc. . . I'm not gonna lie, it's gotten worse over the last few years with Apple's growing popularity. . .
Gonna need a solution as I use my mail for work on a daily basis
using iPhone 5S Champagne with latest software 7.0.4
<Personal Information Edited by Host>

Answer 1

Restore as new, THEN restore from the backup. It seems as if the Mail App is corrupted. Last Sunday this happened to me on my iPad (Mail app quitting, just like in your case). I restored as new, then reinstalled the backup. Luckily I had a backup (from the day before) which was backed up BEFORE the mail problem appeared.
If the above does not solve your problem, I suggest restoring as new and redownloading each app individually, and then transferring your photos from iPhoto on the Mac (or whataever photo app on Windows) and content independently.
If that does not solve your prblem, there might be a hardware problem.