Apple Mail SMTP (iOS)

This guide enables iOS Mail users to receive forwarded messages via Gmail IMAP while sending from a custom domain using ImprovMX SMTP.

Prerequisites

Before beginning, ensure you have:

• A domain configured in ImprovMX with Gmail forwarding
• Created SMTP credentials in the ImprovMX Dashboard
• Added DKIM and DMARC DNS records
• 2-Step Verification enabled on Gmail
• A Gmail App Password generated

Step 1: Add New Mail Account

Navigate to Settings → Mail → Mail Accounts → Add Account, then select Other and Add Mail Account.

Step 2: Enter Account Details

Complete the following fields:

• Name: Your display name
• Email: user@yourdomain.com
• Password: Your Gmail App Password
• Description: Optional identifier

Select Next to proceed to server configuration.

Step 3: Configure Mail Servers

Incoming (Gmail IMAP)

• Host: imap.gmail.com
• Username: your-gmail@gmail.com
• Password: Your Gmail App Password

Outgoing (ImprovMX SMTP)

• Host: smtp.improvmx.com
• Username: user@yourdomain.com
• Password: Your ImprovMX SMTP password

Select Next, allow verification to complete, then Save.

Step 4: Finalize Settings

Disable Notes sync if unnecessary, then confirm with Save.

Step 5: Test Functionality

1. Open Mail
2. Compose a message
3. Verify the From address displays your custom domain
4. Send a test message

Google Account Syncing

If you want to sync Google Contacts and Calendar alongside this mail setup:

Option A (Recommended)

Go to Settings → Mail → Accounts → Add Account → Google. Enable only Contacts and Calendar while disabling Mail.

Option B

Use the custom account setup without Google integration if you prefer isolated mail handling.

Result

You can now send messages from your custom domain on iOS while receiving replies through your Gmail inbox.