嘗試向 gmail python 發送電子郵件時出錯

Question

大家好，我是 python 的新手。 我正在嘗試將圖像發送到我的 gmail 帳戶並收到以下錯誤有人可以幫助我解決這個問題。 我已經搜索並搜索過，但找不到答案 我曾嘗試更改端口。

我打開了谷歌不太安全的應用程序，但不知道還能做什么。

import smtplib
from email.mime.multipart import MIMEMultipart
from email.mime.base import MIMEBase
from email.mime.text import MIMEText
from email import encoders
import os

gmail_user = "you@gmail.com"
gmail_pwd = "pass"

to = "you@gmail.com"
subject = "Report"
text = "Picture report"
attach = 'web.png'

msg = MIMEMultipart()

msg['From'] = gmail_user
msg['To'] = to
msg['Subject'] = subject

msg.attach(MIMEText(text))

part = MIMEBase('application', 'octet-stream')
part.set_payload(open(attach, 'rb').read())
encoders.encode_base64(part)
part.add_header('Content-Disposition',
   'attachment; filename="%s"' % os.path.basename(attach))
msg.attach(part)

mailServer = smtplib.SMTP("smtp.gmail.com", 465)
mailServer.ehlo()
mailServer.starttls()
mailServer.ehlo()
mailServer.login(gmail_user, gmail_pwd)
mailServer.sendmail(gmail_user, to, msg.as_string())
# Should be mailServer.quit(), but that crashes...
mailServer.close()  

  Traceback (most recent call last):
  File "C:\Users\scott\Desktop\PYTHON NEW\newemail.py", line 31, in <module>
    mailServer = smtplib.SMTP("smtp.gmail.com", 465)
  File "C:\Users\scott\AppData\Local\Programs\Python\Python36-32\lib\smtplib.py", line 251, in __init__
    (code, msg) = self.connect(host, port)
  File "C:\Users\scott\AppData\Local\Programs\Python\Python36-32\lib\smtplib.py", line 337, in connect
    (code, msg) = self.getreply()
  File "C:\Users\scott\AppData\Local\Programs\Python\Python36-32\lib\smtplib.py", line 393, in getreply
    raise SMTPServerDisconnected("Connection unexpectedly closed")
smtplib.SMTPServerDisconnected: Connection unexpectedly closed

我已將端口更改為 587 並出現不同的錯誤

Traceback (most recent call last):
  File "C:\Users\scott\Desktop\PYTHON NEW\newemail.py", line 35, in <module>
    mailServer.login(gmail_user, gmail_pwd)
  File "C:\Users\scott\AppData\Local\Programs\Python\Python36-32\lib\smtplib.py", line 729, in login
    raise last_exception
  File "C:\Users\scott\AppData\Local\Programs\Python\Python36-32\lib\smtplib.py", line 720, in login
    initial_response_ok=initial_response_ok)
  File "C:\Users\scott\AppData\Local\Programs\Python\Python36-32\lib\smtplib.py", line 641, in auth
    raise SMTPAuthenticationError(code, resp)
smtplib.SMTPAuthenticationError: (534, b'5.7.14 <https://accounts.google.com/signin/continue?sarp=1&scc=1&plt=AKgnsbt4\n5.7.14 ah5smKPNBMdR8EDhHji_lOLermVkofD0XZiYZtx04cUZGJIvjm6scA9FeCEhJhB--aeW58\n5.7.14 O3uS9IVuNfqKe4HYqXgdBMbvtMSOSSMM4oGYwlvDIoXpIK0IJYKSyAfvPyPcjiF8Q_Es4n\n5.7.14 33gUceqr9ZjlNI066kXt-uTq2V39X6YUS2-ixCCKfoozS9zoQ1KJuLSWU1IhB3gTsGtB9m\n5.7.14 N-AEdgucbByvuI7zr2KG-DZwlvrWw> 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 b65sm27550600wrd.26 - gsmtp')

Answer 1

您的代碼可以縮短為兩行：

import smtplib
mailServer = smtplib.SMTP("smtp.gmail.com", 465)

如果您得到 smtplib.SMTPServerDisconnected，這意味着您的問題與代碼無關。 某些東西阻止了您與端口 465 的網絡連接。

Answer 2

端口 465 上的 SMTP 服務器正在偵聽加密的 TLS 連接。 客戶端不應該使用STARTTLS開始加密，因為 TLS 從一開始就處於活動狀態。 該 SMTP 命令在端口 587 上使用，SMTP 服務器在此處偵聽明文連接。

Answer 3

您可以使用flask_mail 庫發送郵件。這里只是快速回顧一下.. '

from flask_mail import Mail, Message
app.config['SECRET_KEY'] = 'your secretkey'
app.config['MAIL_SERVER'] = 'smtp.gmail.com'
app.config['MAIL_PORT'] = 465
app.config['MAIL_USE_TLS'] = False
app.config['MAIL_USE_SSL'] = True
app.config['MAIL_USERNAME'] = 'your gmail id'
app.config['MAIL_PASSWORD'] = 'and its password'
mail = Mail(app)
msg = Message(subject=subject, sender=(master().user(), 
app.config['MAIL_USERNAME']), recipients=[recipients])
msg.body = "%s %s" % (body, msg.sender)
if html is not None:
    msg.html = str(html)
mail.connect()
mail.send(msg)

'

***注意：- 不要忘記關閉兩步驗證並打開允許來自登錄和安全性的安全性較低的應用程序 > 設備活動和安全事件