9.3.3 issues
cannot access gmail on iPhone after updating to 9.3.3
iPhone 5s, iOS 9.3.3
cannot access gmail on iPhone after updating to 9.3.3
iPhone 5s, iOS 9.3.3
Have you tried to reset your iPhone? These steps can also help you to fix the problem Get help with Mail on your iPhone, iPad, and iPod touch - Apple Support
More detail will help us help you.
Using the Gmail app? Web portal? iOS Mail app? Error messages?
Same issue here, native mail app crashes both on iPAD Air and iPhone 6 after downloading 9.3.3, be it icloud, gmail, O365...
9.3.3 issues