如何使用2因子身份验证从python发送电子邮件？

import smtplib
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText

sender_email = "your_email@example.com"
receiver_email = "recipient_email@example.com"

message = MIMEMultipart()
message["Subject"] = "2因子身份验证邮件"
message["From"] = sender_email
message["To"] = receiver_email

body = "这是一封使用2因子身份验证发送的电子邮件。"
message.attach(MIMEText(body, "plain"))

smtp_server = "smtp.example.com"
smtp_port = 587
smtp_username = "your_username"
smtp_password = "your_password"

with smtplib.SMTP(smtp_server, smtp_port) as server:
    server.starttls()
    server.login(smtp_username, smtp_password)

server.sendmail(sender_email, receiver_email, message.as_string())

import smtplib
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText

sender_email = "your_email@example.com"
receiver_email = "recipient_email@example.com"

message = MIMEMultipart()
message["Subject"] = "2因子身份验证邮件"
message["From"] = sender_email
message["To"] = receiver_email

body = "这是一封使用2因子身份验证发送的电子邮件。"
message.attach(MIMEText(body, "plain"))

smtp_server = "smtp.example.com"
smtp_port = 587
smtp_username = "your_username"
smtp_password = "your_password"

with smtplib.SMTP(smtp_server, smtp_port) as server:
    server.starttls()
    server.login(smtp_username, smtp_password)
    server.sendmail(sender_email, receiver_email, message.as_string())