Errno 10013: Can't send books to Kindle

Traceback (most recent call last):
File "site-packages\calibre\gui2\wizard\send_email.py", line 174, in test_email_settings
File "site-packages\calibre\utils\smtp.py", line 128, in sendmail
File "site-packages\calibre\utils\smtplib.py", line 308, in connect
File "site-packages\calibre\utils\smtplib.py", line 283, in _get_socket
File "socket.py", line 571, in create_connection
error: [Errno 10013] An attempt was made to access a socket in a way forbidden by its access permissions


Log:
connect: (u'smtp.live.com', 587)
connect: (u'smtp.live.com', 587)