凭据(谷歌 smtp)有问题

Question

我是一个非常新的Python程序员，所以请不要对我太苛刻，谢谢。

我正在尝试使用smtplib制作电子邮件发送器，但在将用户凭据交给Google时遇到问题。

完整代码：

mailcheck = input("This mailer is only for gmail, want to continue? (yes or no)")
# GMAIL SMTP INFORMATION
if mailcheck == "yes" or mailcheck == "Yes" or mailcheck == "y":
    smtp_server = 'smtp.gmail.com'
    port = 587
    set_server = "gmail"
else:
    print("Hey, sorry this program is only for Gmail")
#USER CREDENTIALS + RECEIVER
username = input("Google Email?")
password = input("Password?")
receiver = input("Who to send it to?")
subject = input("Subject of the email?")
econtents = input("What to put in the email?")
amount = input("Amount of emails to send?")
credentials = username + password
global d1
global d2
try:
    server = smtplib.SMTP(smtp_server, port)
    server.ehlo()
    server.starttls()
    server.login(username, password)
    print("Sending" + amount, "to", receiver)
    for i in range(1, int(amount) + 1):
        message = "From" + credentials[0] + 'nSubject' + subject + 'n' + econtents
        time.sleep(random.uniform(d1, d2))
        server.sendmail(credentials[0], receiver, message)
        print("nEmail Sent!")
    else:
        print("Finished sending emails")
except smtplib.SMTPRecipientsRefused:
        print("Recipient refused. Invalid email address?")
except smtplib.SMTPAuthenticationError:
        print("Unable to authenticate with server. Ensure the details are correct.")
except smtplib.SMTPServerDisconnected:
        print("Server disconnected for an unknown reason.")
except smtplib.SMTPConnectError:
        print("Unable to connect to server.")

错误 ：

Unable to authenticate with server. Ensure the details are correct.

这意味着登录过程出错了。它应该在这部分的某个地方出错：

 #USER CREDENTIALS + RECEIVER
username = input("Google Email?")
password = input("Password?")
receiver = input("Who to send it to?")
subject = input("Subject of the email?")
econtents = input("What to put in the email?")
amount = input("Amount of emails to send?")
credentials = username + password
global d1
global d2
try:
    server = smtplib.SMTP(smtp_server, port)
    server.ehlo()
    server.starttls()
    server.login(username, password)
    print("Sending" + amount, "to", receiver)
    for i in range(1, int(amount) + 1):
        message = "From" + credentials[0] + 'nSubject' + subject + 'n' + econtents
        time.sleep(random.uniform(d1, d2))
        server.sendmail(credentials[0], receiver, message)
        print("nEmail Sent!")

我认为这是因为credentials = username + password不起作用，但我不知道如何解决它。

如果有人知道我必须更改什么才能解决此问题，那就太好了！

Answer 1

与其添加这两个字符串，不如将它们放在一个数组中。在 Python 中，要么是

credentials = [username, password]

或

credentials = list(username, password)

但这似乎不是你的问题。您的问题与 login(( 函数有关，因为您收到 SMTPAuthenticationError 异常。smtplib 文档说在运行 .starttls(( 后，你应该再次运行 .ehlo((。尝试在登录之前运行它。此外，您可以尝试在端口 465 上生成 SSL 实例。

(Ctrl+F 表示 .starttls(((

https://docs.python.org/2/library/smtplib.html