Почему я не могу подключиться к SMTP в XAMPP?

[mail function]
sendmail_from = ***@gmail.com
sendmail_path = "\"D:\xampp\sendmail\sendmail.exe\" -t"
SMTP=smtp.gmail.com
smtp_port=587

[sendmail]
smtp_server=stmp.gmail.com
smtp_port=587
debug_logfile=debug.log
auth_username=***@gmail.com
auth_password=***
force_sender=
smtp_ssl=auto
error_logfile=error.log

mail ('***@***.ru', 'Проверка', 'Текст тестового письма', 'From: ***@gmail.com');

19.06.17 16:03:05 ** --- MESSAGE BEGIN ---
19.06.17 16:03:05 ** To: ***@***.ru
19.06.17 16:03:05 ** Subject: Проверка
19.06.17 16:03:05 ** From: ***@gmail.com
19.06.17 16:03:05 **
19.06.17 16:03:05 ** Текст тестового письма
19.06.17 16:03:05 ** --- MESSAGE END ---
19.06.17 16:03:07 ** Connecting to stmp.gmail.com:587
19.06.17 16:03:09 ** Disconnected.
19.06.17 16:03:09 ** Disconnected.
19.06.17 16:03:09 ** Disconnected.
19.06.17 16:03:09 ** Socket Error # 11001Host not found.