问题描述

如何发送UTF8电子邮件？

import sys
import smtplib
import email
import re

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

def sendmail(firm, fromEmail, to, template, subject, date):
    with open(template, encoding="utf-8") as template_file:
        message = template_file.read()

    message = re.sub(r"{{s*firms*}}", firm, message)
    message = re.sub(r"{{s*dates*}}", date, message)
    message = re.sub(r"{{s*froms*}}", fromEmail, message)
    message = re.sub(r"{{s*tos*}}", to, message)
    message = re.sub(r"{{s*subjects*}}", subject, message)

    msg = MIMEMultipart("alternative")
    msg.set_charset("utf-8")
    
    msg["Subject"] = subject
    msg["From"] = fromEmail
    msg["To"] = to

    #Read from template
    html = message[message.find("html:") + len("html:"):message.find("text:")].strip()
    text = message[message.find("text:") + len("text:"):].strip()

    part1 = MIMEText(html, "html")
    part2 = MIMEText(text, "plain")
    
    msg.attach(part1)    
    msg.attach(part2)

    try:
        server = smtplib.SMTP("10.0.0.5")
        server.sendmail(fromEmail, [to], msg.as_string())
        return 0
    except Exception as ex:
        #log error
        #return -1
        #debug
        raise ex
    finally:
        server.quit()

if __name__ == "__main__":
    #debug
    sys.argv.append("Moje")
    sys.argv.append("newsletter@example.cz")
    sys.argv.append("subscriber@example.com")
    sys.argv.append("may2011.template")
    sys.argv.append("This is subject")
    sys.argv.append("This is date")

    
    if len(sys.argv) != 7:
        exit(-2)

    firm = sys.argv[1]
    fromEmail = sys.argv[2]
    to = sys.argv[3]
    template = sys.argv[4]
    subject = sys.argv[5]
    date = sys.argv[6]
    
    exit(sendmail(firm, fromEmail, to, template, subject, date))

输出

Traceback (most recent call last):
  File "C:Documents and SettingsAdministratorPlochaNewsletter-build-desktopsendmail.py", line 69, in <module>
    exit(sendmail(firm, fromEmail, to, template, subject, date))   
  File "C:Documents and SettingsAdministratorPlochaNewsletter-build-desktopsendmail.py", line 45, in sendmail
    raise ex
  File "C:Documents and SettingsAdministratorPlochaNewsletter-build-desktopsendmail.py", line 39, in sendmail
    server.sendmail(fromEmail, [to], msg.as_string())
  File "C:Python32libsmtplib.py", line 716, in sendmail
    msg = _fix_eols(msg).encode('ascii')
UnicodeEncodeError: 'ascii' codec can't encode character 'u011b' in position 385: ordinal not in range(128)

推荐答案

您只需向MIMEText调用添加'utf-8'参数(默认情况下假定为'us-ascii')。

例如：

# -*- encoding: utf-8 -*-

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

msg = MIMEMultipart("alternative")
msg["Subject"] = u'テストメール'
part1 = MIMEText(u'u3053u3093u306bu3061u306fu3001u4e16u754cuff01
',
                 "plain", "utf-8")
msg.attach(part1)

print msg.as_string().encode('ascii')

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