HTC One M8 for Windows - Manual (Page 118)

Linking inboxes as one
To check your email from all your accounts just in one place without
having to switch to different accounts, you can link your inboxes as one.
1. Tap > link inboxes.
2. Under other inboxes, tap one or more email accounts that you want
to combine to your unified inbox.
The default name for your unified inbox is Linked inbox.
Tap rename linked inbox if you want to change the name of your
unified inbox.
3. Press to return to your inbox. You'll now see just one inbox
containing all your email from your different accounts.
Next time you want to check your email, tap on the Start screen or in
the apps list.
Unlinking an inbox
1. Tap > linked inboxes.
2. Under this inbox, tap the email account you want to remove from
the unified inbox.
3. Tap unlink.
118 Email