使用python作为Gmail提供商来发送电子邮件。 不工作

Question

我试图发送电子邮件使用python与gmail的供应商。 代码如下：

import smtplib


def send_email():
    email_address = 'xxx@gmail.com'
    email_password = 'xxx'

    try:
        server = smtplib.SMTP('smtp.gmail.com:587')
        server.ehlo()
        server.starttls()
        server.login(email_address, email_password)
        sub= 'sdgsdg'
        msg = 'sdfsf'
        message = 'Subject: {}\n\n{}'.format(sub, msg)
        server.sendmail(email_address, email_address, message)
        server.quit()
        print('Success: Email sent!')
    except:
        print('Email failed to send.')


if __name__ == "__main__":
    send_email()

我正在Windows 10上使用Python 3.6.2执行。 该代码用于长时间执行，并且电子邮件未发送。 该代码永远不会停止执行，我被迫停止执行。 谁能指出该函数有什么问题？ 当然，我已经在gmail启用了less secure apps 。 我认为代码永远不会从server = smtplib.SMTP('smtp.gmail.com:587')向前移动。

Answer 1

我制作了一个“自动邮件发件人”，它将接收大量产品和邮件文件，自动更正某些错误类型的邮件，根据特定算法和受支持的外部语言自动更改主题和邮件，以...

这只是我的代码的一部分，可能会有所帮助...

#// - You need to set "Allow less secure apps: ON" (go to link below).
#//                 - https://myaccount.google.com/lesssecureapps
#// Is work and with out that "allow..." but is more ok to set it.

# Imports
import smtplib, time

# Language
error_title = "ERROR"
send_error = "I'm waiting {idle} and I will try again."
send_error_mail = "Mail invalid"
send_error_char = "Invalid character"
send_error_connection_1_2 = "Connection problem..."
send_error_connection_2_2 = "Gmail server is down or internet connection is instabil."
login_browser = "Please log in via your web browser and then try again."
login_browser_info = "That browser and this software shood have same IP connection first time."

# Gmaild ID fro login
fromMail = "your_id@gmail.com"
fromPass = "your_password"

# To ho to send mails
mailTo = [
    "test@me.com",
    "test_2@ymail.com"
]

# Some configurations
mailDelay = 15
exceptionDelay = 180

# SEND MAILS
def send_mail(thisSubject="Just a subject", thisMessage="This is just a simple message..."):
    # If still have mails to send
    while len(mailTo) != 0:
        sendItTo = mailTo[0]    # Memorise what mail will be send it (debug purpose)
        try:
            # Connect to the server
            server = smtplib.SMTP("smtp.gmail.com:587")
            server.ehlo()
            server.starttls()

            # Sign In
            server.login(fromMail, fromPass)

            # Set the message
            message = f"Subject: {thisSubject}\n{thisMessage}"

            # Send one mail
            server.sendmail(fromMail, mailTo.pop(0), message)

            # Sign Out
            server.quit()

        # If is a problem
        except Exception as e:
            # Convert error in a string for som checks
            e = str(e)

            # Show me if...
            if "The recipient address" in e and "is not a valid" in e:
                print(f"\n>>> {send_error_mail} [//> {sendItTo}\n")
            elif "'ascii'" in e and "code can't encode characters" in e:
                print(f"\n>>> {send_error_char} [//> {sendItTo}\n")
            elif "Please" in e and "log in via your web browser" in e:
                print(f"\n>>> {login_browser}\n>>>  - {login_browser_info}")
                break
            elif "[WinError 10060]" in e:
                if "{idle}" in send_error:
                    se = send_error.split("{idle}"); seMsg = f"{se[0]}{exceptionDelay} sec.{se[1]}"
                else:
                    seMsg = send_error
                print(f"\n>>> {send_error_connection_1_2}\n>>> {send_error_connection_2_2}")
                print(f">>> {seMsg}\n")
                # Wait 5 minutes
                waitTime = exceptionDelay - mailDelay
                if waitTime <= 0:
                    waitTime = exceptionDelay
                time.sleep(waitTime)
            else:
                if "{idle}" in send_error:
                    se = send_error.split("{idle}"); seMsg = f"{se[0]}{exceptionDelay} sec.{se[1]}"
                else:
                    seMsg = send_error
                print(f">>> {error_title} <<<", e)
                print(f">>> {seMsg}\n")
                # Wait 5 minutes
                time.sleep(exceptionDelay)

        # If are still mails wait before to send another one
        if len(mailTo) != 0:
            time.sleep(mailDelay)

send_mail()

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