Contact Forms

• PHP mail() overview
• Send PHP mail via SMTP
• Troubleshooting PHP mail()
• PHPMailer overview
• PHPMailer — Installing on a shared server
• PHPMailer — Installing on a VPS or Dedicated server
• How to use Sendmail
• PHP IMAP
• How to spoof in your CMS or web application
• Formmail
• Create a script to send you rejected emails
• Troubleshooting GMAIL SMTP authentication errors
• Enabling the OAuth 2 API to use with your WordPress Mail SMTP plugin