Mail sync issue between iPhone and iPad
Mail is not syncing between iPhone mail boxes and iPad mail boxes, not in Inbox or Sent, both devices on 18.
[Re-Titled by Moderator]
Make sure both devices have the email account set up as IMAP. You can go to Settings > Mail, and choose your account. You should see either IMAP account information or POP account information. If one of them shows POP, then that account is not meant to sync with your other devices. This would only be the case for a third party email provider, not your iCloud mail account.
