>>> import smtplib

>>> smtpobj =smtplib.SMTP('smtp.hibox.biz',587)

>>> smtpobj.ehlo()

(250, b'hb3-IN03.hibox.biz\n8BITMIME\nSIZE 52428800\nSTARTTLS\nAUTH PLAIN LOGIN\nAUTH=PLAIN LOGIN')

>>> smtpobj.starttls()

(220, b'Go ahead with TLS')

>>> smtpobj.login('xxx@ado.com.cn','password')

(235, b'#2.0.0 OK Authenticated')

>>> smtpobj.sendmail('sendfrom@ado.com.cn','receive@ado.com.cn','subject: hello. \n Dear wang thanks for you fish. sincerely. bobo')

{}

>>> smtpobj.quit()

(221, b'hb3-IN03.hibox.biz')