How to configure an IMAP mailbox on a Oneplus X

To configure an IMAP mailbox on a Oneplus X (Android 5.1.1, Oxygen 2.2.1). Use these settings:

  • Go to Settings > Personal > Account > Add account.
  • Select Personal (IMAP).
  • Incoming server settings.
    • Username: Full e-mail address
    • Authentication: Enter your password
    • Server: Use mail.yourdomain.com 
    • Security Type: STARTTLS (Accept all certificates)
  • Outgoing server settings.
    • SMTP Server: mail.yourdomain.com
    • Port: 587
    • Security Type: STARTTLS (Accept all certificates)
    • Require sign-in: checked
    • Username: your full e-mail adress
    • Authentication: Enter your password