sendmail.ini
smtp_server=smtp.office365.com smtp_port=587 auth_username=your-username@your-domain.com auth_password=your-password force_sender=your-username@your-domain.com
php.ini
SMTP=smtp.office365.com smtp_port=587 sendmail_from = your-username@your-domain.com sendmail_path = "\"C:\xampp\sendmail\sendmail.exe\" -t"