smtp发送邮件附件

sendemail.py

import os
import smtplib
from email.mime.application import MIMEApplication
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
from email.utils import COMMASPACE, formatdate

def send_mail(send_from, send_to, subject, text, files,
              smtpserver, sender_username, sender_password):
    assert isinstance(send_to, list)

    msg = MIMEMultipart()
    msg['From'] = send_from
    msg['To'] = COMMASPACE.join(send_to)
    msg['Date'] = formatdate(localtime=True)
    msg['Subject'] = subject

    msg.attach(MIMEText(text))

    for f in files or []:
        with open(f, "rb") as fil:
            part = MIMEApplication(
                fil.read(),
                Name=os.path.basename(f)
            )
            part['Content-Disposition'] = 'attachment; filename="%s"' % os.path.basename(f)
            msg.attach(part)

    smtp = smtplib.SMTP_SSL(smtpserver, 465)
    smtp.ehlo()
    smtp.login(sender_username, sender_password)
    smtp.sendmail(send_from, send_to, msg.as_string())
    smtp.close()