This function is only available for the Advanced plan.
You can group emails exchanged with others in any mailbox with the Thread view selected.
Viewing your emails in the Thread view simplifies mail tracking and keeps your Inbox tidy.
Mobile
- Open the mailbox with the Thread view selected.
- Tap an email to see the email threads exchanged via this email address.
Thread view is not available on memos, unread emails, and emails marked as important.
Enable Thread view on any mailbox
You can select the mailbox to enable Thread view.
Mobile
- Tap
in More or Mail. - Tap 'Set Mail Screen' under 'Mail'.
- Tap 'Thread view'.
- Select the mailboxes to view in the Thread view.
PC Web
- Click
on the top. - Click one of the icons shown on the top right of the email list:
, 
or 
. - Click 'Show in Thread view' to view the selected mailbox in Thread view.