使用Python转发包含邮件头的电子邮件

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

sender = 'sender@example.com'
receiver = 'receiver@example.com'
subject = 'Forwarded Email with Header'

msg = MIMEMultipart()
msg['From'] = sender
msg['To'] = receiver
msg['Subject'] = Header(subject, 'utf-8')

with open('original_email.eml', 'r') as f:
    email_content = f.read()

attachment = MIMEText(email_content, 'plain', 'utf-8')
attachment.add_header('Content-Disposition', 'attachment', filename='original_email.eml')
msg.attach(attachment)

smtp_server = 'smtp.example.com'
smtp_port = 25
username = 'username'
password = 'password'

try:
    smtp_obj = smtplib.SMTP(smtp_server, smtp_port)
    smtp_obj.login(username, password)
    smtp_obj.sendmail(sender, receiver, msg.as_string())
    smtp_obj.quit()
    print('Email sent successfully!')
except smtplib.SMTPException as e:
    print('Failed to send email:', str(e))