[Shedi]

If your MyBB forum is not sending activation emails, the problem could be due to misconfiguration or server-related issues. Here’s a step-by-step guide to troubleshoot and resolve the issue:

Step 1: Check Email Settings in MyBB

• Log in to your Admin Control Panel (ACP).
  
• Navigate to Configuration > Mail Settings.
  
• Review these key settings:
  
• Mail Handler: Select either PHP Mail or SMTP depending on your server setup.
  
• If using PHP Mail, ensure your server supports the mail() function.
  
• If using SMTP, fill in the SMTP details correctly (e.g., host, port, username, and password).
  

Example SMTP Settings:

Setting = Value
SMTP Host = smtp.yourmailserver.com
SMTP Port = 587 (for TLS) or 465 (for SSL)
SMTP Username = Your email address
SMTP Password = Your email password
Encryption Method = TLS or SSL

Step 2: Verify Email Templates
Go to Configuration > Languages > Your Language Pack > Edit Templates.
Open the messages.lang.php file or search for "email_activateaccount" to ensure the activation email template is correct.
Step 3: Check Spam/Junk Folder
Ask users to check their spam or junk mail folders, as activation emails might be flagged as spam.

Step 4: Test Email Functionality
Use the "Send Test Email" feature in Tools & Maintenance > System Mail Log.
If sending fails, the error logs will provide more information about the issue.
Step 5: Check Server Configuration
PHP Mail Issue: Ensure the mail() function is enabled.
SMTP Configuration: Verify credentials and confirm that your mail server allows external SMTP connections.
Step 6: Review Error Logs
If MyBB logs errors under Tools & Maintenance > System Mail Log, these logs can provide insight into specific problems.

Step 7: Consider External SMTP Services (Optional)
If issues persist, use a third-party SMTP service (like Gmail, SendGrid, or Mailgun) for reliable email delivery.

Example Gmail SMTP Settings:

Setting - Value
SMTP Host - smtp.gmail.com
SMTP Port - 587
SMTP Username - Your Gmail address
SMTP Password - App-specific password
Encryption Method - TLS