smtplib.SMTPResponseException: 535 不正确的身份验证数据 Apache，python，smtplib 模块

Question

我正在尝试通过我大学的 SMTP 服务器发送电子邮件。我写了一些 python 代码。代码本身工作正常，但我认为 SMTP 服务器有问题。我想我应该联系管理员，但我应该告诉他什么？真的是服务器问题吗？我的代码如下所示：

import smtplib
import string

fromaddr = str('from@subunidomain.server.com')
password = str('secretpass')

toaddrs  = 'to@unidomain.com'
server_smtp = 'smtp.server.com'
port_smtp = 465

msg = 'There was a terrible error that occured and I wanted you to know'

BODY = string.join((
        "From: %s" % fromaddr,
        "To: %s" % toaddrs,
        "Subject: %s" % 'Hello' ,
        "",
        'Hello'
        ), "\r\n")

try :

    server = smtplib.SMTP_SSL(host=server_smtp, port=port_smtp)
    server.set_debuglevel(True)
    server.login(fromaddr,password)
    server.sendmail(fromaddr, toaddrs, str(BODY))
    server.quit()

except smtplib.SMTPServerDisconnected :
    print "smtplib.SMTPServerDisconnected"
except smtplib.SMTPResponseException, e:
    print "smtplib.SMTPResponseException: " + str(e.smtp_code) + " " + str(e.smtp_error)
except smtplib.SMTPSenderRefused:
    print "smtplib.SMTPSenderRefused"
except smtplib.SMTPRecipientsRefused:
    print "smtplib.SMTPRecipientsRefused"
except smtplib.SMTPDataError:
    print "smtplib.SMTPDataError"
except smtplib.SMTPConnectError:
    print "smtplib.SMTPConnectError"
except smtplib.SMTPHeloError:
    print "smtplib.SMTPHeloError"
except smtplib.SMTPAuthenticationError:
    print "smtplib.SMTPAuthenticationError"
except Exception :
    print "Exception"

我从服务器收到这样的响应：

send: 'ehlo [127.0.1.1]\r\n'
reply: '250-smtp.server.com Hello [127.0.1.1] [219.104.12.12]\r\n'
reply: '250-SIZE 78643200\r\n'
reply: '250-PIPELINING\r\n'
reply: '250-AUTH PLAIN LOGIN\r\n'
reply: '250 HELP\r\n'
reply: retcode (250); Msg: smtp.server.com Hello [127.0.1.1] [219.104.12.12]
SIZE 78643200
PIPELINING
AUTH PLAIN LOGIN
HELP
send: 'AUTH PLAIN AGFpQGluZm9ybWF0aWNhLnVtY3MubHVibGluLnBsAGFubmFsZXN1bWNzMjAxNQ==\r\n'
reply: '535 Incorrect authentication data\r\n'
reply: retcode (535); Msg: Incorrect authentication data
smtplib.SMTPResponseException: 535 Incorrect authentication data

问题是什么以及如何解决？ 我的密码和电子邮件 100% 正确。

这是 https://pingability.com/smtptest.jsp 的输出（用户名： from - 当我尝试写 from @subunidomain.server.com 相反，它不起作用):

smtp.server.com
SMTP Username from
Output  

DEBUG: getProvider() returning javax.mail.Provider[TRANSPORT,smtp,com.sun.mail.smtp.SMTPTransport,Sun Microsystems, Inc]
DEBUG SMTP: useEhlo true, useAuth true
DEBUG SMTP: trying to connect to host "smtp.server.com", port 25, isSSL false
220-smtp.server.com ESMTP Exim 4.69 #1 Wed, 29 Apr 2015 23:05:53 +0200 
220-We do not authorize the use of this system to transport unsolicited, 
220 and/or bulk e-mail.
DEBUG SMTP: connected to host "smtp.server.com", port: 25

EHLO localhost
250-smtp.server.com Hello pingability.com [72.249.37.67]
250-SIZE 78643200
250-PIPELINING
250-AUTH PLAIN LOGIN
250-STARTTLS
250 HELP
DEBUG SMTP: Found extension "SIZE", arg "78643200"
DEBUG SMTP: Found extension "PIPELINING", arg ""
DEBUG SMTP: Found extension "AUTH", arg "PLAIN LOGIN"
DEBUG SMTP: Found extension "STARTTLS", arg ""
DEBUG SMTP: Found extension "HELP", arg ""
DEBUG SMTP: Attempt to authenticate
DEBUG SMTP: check mechanisms: LOGIN PLAIN DIGEST-MD5 NTLM 
AUTH LOGIN
334 VXNlcm5hbWU6
YWk=
334 UGFzc3dvcmQ6
YW5uYWxlc3VtY3MyMDE1
235 Authentication succeeded
DEBUG SMTP: use8bit false
MAIL FROM:<smtptester@pingability.com>
250 OK
RCPT TO:<smtptester@pingability.com>
250 Accepted
DEBUG SMTP: Verified Addresses
DEBUG SMTP:   smtptester@pingability.com
DATA
354 Enter message, ending with "." on a line by itself
Date: Wed, 29 Apr 2015 21:05:53 +0000 (UTC)
From: smtptester@pingability.com
To: smtptester@pingability.com
Message-ID: <8486466.51545.1430341553138.JavaMail.tomcat@localhost>
Subject: Pingability Test
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 7bit

Pingability Test
.
250 OK id=1YnZB5-0006N0-Nd
QUIT
221 smtp.server.com closing connection

Answer 1

也许您可以尝试使用 yagmail 发送消息。

安装：

pip install yagmail

然后导入，创建连接对象并发送邮件：

import yagmail
yag = yagmail.Connect('user', 'pass', server_smtp, port_smtp, set_debuglevel = 1)
yag.send(toaddrs, Subject = 'Hello', Body = 'Hello')

如果您遇到任何错误，请告诉我。

Disclaimer/Background：我是 yagmail 的 maintainer/developer。这个包的目的是让很多事情在发送电子邮件时变得非常方便。例如，您可以利用它的特性，不在脚本中写入您的密码，而是将其存储在您的密钥环中（非常安全，您可以在 github 上阅读相关内容！）。它还有一些方法可以让它更短，例如：

from yagmail import Connect
yag = Connect(host = server_smtp, port = port_smtp, set_debuglevel = 1) 
yag.send(toaddrs, 'Hello', 'Hello')

附件（如HTML/images）确实好用，但没人问我就不去了。最后，只要它超出范围，它就会自动退出。

smtplib.SMTPResponseException: 535 不正确的身份验证数据 Apache，python，smtplib 模块

smtplib.SMTPResponseException: 535 Incorrect authentication data Apache, python, smtplib module

python

smtp

smtplib