By Conner Carey on Wed, 12/14/2016
With iOS 10 on iPhone, emails from the same person now bundle into threads, which means all the emails from that exchange appear in a single email instead of appearing as separate messages. This feature is on by default now in the Mail app and has been giving quite a few users a headache. Other users find the feature helpful since it keeps all emails from a conversation together, preventing the older emails from getting lost. Luckily, you can turn email threads off in Settings if you’d prefer. Here’s how to turn off email threads in iOS 10 on iPhone.
How to Turn Off Email Threads in iOS 10
Open the Settings app.
Under Threading, toggle off Organize by Thread.
Doing this will return your Mail to the way it was before updating to iOS 10. If you decide you’d like to keep your emails connected in a thread, you can always revisit Settings and simply turn this feature back on.