Meizu MX - Manual (Page 46)

App guide 42
2 Tap "OK".
Other settings
You can change your account settings, including inbox refresh frequency,
notification settings, BCC’ing yourself, and more.
When you are finished making changes, tap the Back key to return and save the
settings.
Signature
Inbox refresh frequency
Auto-load attachments
Email notifications
Always BCC myself
Email filter
Your signature will be included at the end of all
emails.
The refresh frequency can be set to "Never,"
"Every 5 minutes", "Every 10 minutes", "Every
15 minutes", etc.
When on mobile data, choose whether or not
to automatically load attachments.
Update the notifications bar when there are
incoming emails.
Send a BCC copy of the email to yourself.
Tap "Filter" to access filtering settings.
Emails from blacklisted senders will
automatically be trashed.
You can also sync with the Flyme public
blacklist.