How to debug codeigniter mail

The joys of debugging CodeIgniter's mail functionality!

Here are some steps to help you debug CodeIgniter's mail functionality:

  1. Check the mail configuration: Make sure your mail configuration is correct in the config/email.php file. Verify that the mailtype is set to text or html depending on your email content.
  2. Enable mail logging: In the config/email.php file, set maillog to TRUE. This will log all mail attempts to the application/logs directory. This can help you identify any issues with your mail setup.
  3. Check the mail log: Look for any errors or issues in the mail log file. You can use a tool like tail or less to view the log file.
  4. Verify the mail server settings: Ensure that your mail server settings are correct. Check the smtp_host, smtp_port, smtp_user, and smtp_pass settings in the config/email.php file.
  5. Use a mail client to test: Use a mail client like Thunderbird or Outlook to send a test email to your email address. This can help you identify if the issue is with CodeIgniter or your mail server.
  6. Check the email content: Verify that the email content is correct and not causing any issues. Check for any encoding issues or special characters that might be causing problems.
  7. Use a mail debugging tool: There are several mail debugging tools available, such as Mailhog or Mailcatcher, that can help you debug your mail issues.
  8. Check the PHP mail settings: Ensure that your PHP mail settings are correct. Check the sendmail_path setting in your php.ini file.
  9. Check the CodeIgniter mail library: Verify that the CodeIgniter mail library is loaded correctly. Check the autoload.php file to ensure that the email library is loaded.
  10. Use a debugger: Use a debugger like Xdebug or Zend Debugger to step through your code and identify any issues with the mail functionality.

Some common issues that can cause mail issues in CodeIgniter include:

By following these steps, you should be able to identify and debug any issues with CodeIgniter's mail functionality.