The settings are identical to Outlook — only the menu names differ.
iPhone (built-in Mail app)
- Settings → Mail → Accounts → Add Account.
- Pick Other → Add Mail Account.
- Fill in Name, Email and Password, tap Next.
- Choose IMAP.
- Incoming + outgoing host:
mail.yourdomain.com. Username: full email address. Password: mailbox password. - Tap Save. If it asks about SSL, say Yes.
Android (Gmail app)
- Open Gmail → tap your profile picture → Add another account.
- Pick Other.
- Enter the email address, tap Next → Personal (IMAP).
- Enter the password.
- Incoming server:
mail.yourdomain.com, port 993, SSL/TLS. - Outgoing server: same host, port 465, SSL/TLS, authentication required.
- Finish — sync interval and signature are personal preference.
Tip — battery
Push email on phones drains battery. Set sync interval to Every 15 minutes if that matters.