我尝试从gmail smtp发送邮件，但是我使用的很多lib都有同样的问题，所以我自己编写代码，但仍然遇到同样的问题。
邮件地址和密码正确无误，并设置“允许不够安全的应用程序：已启用 “，但登录时仍然失败。
In [3]: import smtplib
In [4]: sender = "xxxx@gmail.com"
In [5]: receiver = ["a@m.com", "b@m.com"]
In [6]: message = "Some say, the hole that you have is not what you think about. "
In [7]: session = smtplib.SMTP('smtp.gmail.com',587)
In [8]: session.ehlo()
Out[8]:
(250,
'smtp.gmail.com at your service, [52.69.222.223]\nSIZE 35882577\n8BITMIME\nSTARTTLS\nENHANCEDSTATUSCODES\nPIPELINING\nCHUNKING\nSMTPUTF8')
In [9]: session.starttls()
Out[9]: (220, '2.0.0 Ready to start TLS')
In [10]: session.ehlo()
Out[10]:
(250,
'smtp.gmail.com at your service, [52.69.222.223]\nSIZE 35882577\n8BITMIME\nAUTH LOGIN PLAIN XOAUTH2 PLAIN-CLIENTTOKEN OAUTHBEARER XOAUTH\nENHANCEDSTATUSCODES\nPIPELINING\nCHUNKING\nSMTPUTF8')
In [11]: session.login(sender,'xxxxxxxxxx')
---------------------------------------------------------------------------
SMTPAuthenticationError Traceback (most recent call last)
<ipython-input-12-d9e3f09f8956> in <module>()
----> 1 session.login(sender,'RVt-p2o-DNH-KUx')
/usr/lib/python2.7/smtplib.pyc in login(self, user, password)
620 # 235 == 'Authentication successful'
621 # 503 == 'Error: already authenticated'
--> 622 raise SMTPAuthenticationError(code, resp)
623 return (code, resp)
624
SMTPAuthenticationError: (534, '5.7.14 <https://accounts.google.com/signin/continue?sarp=1&scc=1&plt=AKgnsbsM\n5.7.14 0ac0_dvD0Y_cg29gAxTuOXREOWblLYFSrQlrVnGUA98X18_Bht8wEh-uL_nhqDReDOqF8Z\n5.7.14 Ll39ZurQoK631iZ9Q_cbkAAHqRZBpWMfGnZUMUONSycVww2_YydzB0vQUGGb3lrboeriGh\n5.7.14 gHVI6Vw5SUYyUDCJyfV3Jav_oJFgbLvyK2a0UwllJvt8gQqvy7JhpFIQoybHlpuG5ZLu23\n5.7.14 JNo4Ru7q6vU3aaRfWKl7YoNnRRVHA> Please log in via your web browser and\n5.7.14 then try again.\n5.7.14 Learn more at\n5.7.14 https://support.google.com/mail/answer/78754 s14sm19463632pfe.36 - gsmtp')