Connect the Email Address For Your Own Domain 

Step 1: Get Settings from cPanel

• Login to cPanel
• Go to Email Accounts
• Click Connect Devices next to your email
• Note these details:
  • Username: your full email (e.g. info@domain.com)
  • Incoming Server:  mail.yourdomain.com
  • Outgoing Server: same as above
  • IMAP Port: 993 (SSL)
  • SMTP Port: 587 (STARTTLS)

Step 2: Add Account on iPhone

• Go to Settings → Mail → Accounts → Add Account
• Tap Other
• Tap Add Mail Account

Fill:

• Name
• Email
• Password
• Description

Tap Next

Step 3: Enter Mail Server Settings

Select IMAP and enter:

Incoming Mail Server

• Host Name: mail.yourdomain.com
• Username: full domain email address
• Password: your domain email password

Outgoing Mail Server

• Host Name: same as above
• Username: full domain email address
• Password: your domain email password

Tap Next

Step 4: Fix Ports

• IMAP Port → 993
• For IMAP set SSL/TLS
• SMTP Port → 587
• For SMTP set STARTTLS

Step 5: Done

Tap Save, open Mail app → your inbox should start syncing