📨 Email Integration

Sends feedback using PHP's mail() function. Email sending frequently experiences "successfully sent but arrives nowhere (or goes to spam)" depending on server configuration and domain reputation. Carefully test following these steps.

📋 Required Environment/Preparation

• PHP Server Setup must be completed
• Server Send Permission: Your rental server or VPS must allow email sending from PHP (sendmail, etc.)
• SSL Environment: Not required but recommended from security and reliability perspectives

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🛠️ Setup Procedure

Step 1: Test with Minimal Configuration

First, test by setting only the receiving address (to) without changing the from address automatically generated by setup.php.

1. Set email > enabled in config.php to true.
2. Enter your email address in to.
3. Leave from as the automatically entered domain (e.g., noreply@example.com).

Step 2: Custom Domain Configuration (If Not Receiving)

If Step 1 doesn't work, change the from address to an actual (or recommended) format matching the server's domain.

// ...
'email' => [
    'enabled' => true,
    'to'      => 'your-name@gmail.com', // Recipient
    'from'    => 'noreply@example.com', // Match to server domain
],
// ...

From Address Caution

Do not directly specify Gmail or Yahoo Mail addresses in from. Sender domain and actual server won't match, causing DMARC/SPF authentication failure and almost certain blocking. Always use "domain hosted by server".

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🔍 Troubleshooting (If Not Receiving)

If emails don't arrive, consider these factors:

• Check Spam Folder: Without SPF record configured, high probability of spam classification.
• Check Server Logs: If PHP-side send error occurs, error details are recorded in data/debug_???.log.
• Gmail Whitelist, etc.: Try setting email reception permission as "safe email" from specific domains.
• PHP mail() Restrictions: Some inexpensive rental servers prohibit mail() function usage as spam countermeasure.

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🧪 Testing

Once setup is complete, test whether feedback is actually received.

1. Run app following Testing Procedure.
2. Open in-game Custom > Feedback tab, enter message, and submit.
3. Check the configured to mailbox.

📬 Reception Example