使用 Python 通过 SMTP 协议发信
python 3.6以上：
# -*- coding:utf-8 -*-
import smtplib
import email
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
from email.mime.image import MIMEImage
from email.mime.base import MIMEBase
from email.mime.application import MIMEApplication
from email.header import Header
# 发件人地址，通过控制台创建的发件人地址
username = '***'
# 发件人密码，通过控制台创建的发件人密码
password = '***'
# 自定义的回复地址
replyto = '***'
# 收件人地址或是地址列表，支持多个收件人，最多30个
#rcptto = ['***', '***']
rcptto = '***'
# 构建alternative结构
msg = MIMEMultipart('alternative')
msg['Subject'] = Header('自定义信件主题')
msg['From'] = '%s <%s>' % (Header('自定义发信昵称'), username)
msg['To'] = rcptto
msg['Reply-to'] = replyto
msg['Message-id'] = email.utils.make_msgid()
msg['Date'] = email.utils.formatdate()
# 构建alternative的text/plain部分
textplain = MIMEText('自定义TEXT纯文本部分', _subtype='plain', _charset='UTF-8')
msg.attach(textplain)
# 构建alternative的text/html部分
texthtml = MIMEText('自定义HTML超文本部分', _subtype='html', _charset='UTF-8')
msg.attach(texthtml)
# 发送邮件
try:
client = smtplib.SMTP()
#python 2.7以上版本，若需要使用SSL，可以这样创建client
#client = smtplib.SMTP_SSL()
#SMTP普通端口为25或80
client.connect('smtpdm.aliyun.com', 25)
#开启DEBUG模式
client.set_debuglevel(0)
client.login(username, password)
#发件人和认证地址必须一致
#备注：若想取到DATA命令返回值,可参考smtplib的sendmaili封装方法:
# 使用SMTP.mail/SMTP.rcpt/SMTP.data方法
client.sendmail(username, rcptto, msg.as_string())
client.quit()
print('邮件发送成功！')
except smtplib.SMTPConnectError as e:
print('邮件发送失败，连接失败:', e.smtp_code, e.smtp_error)
except smtplib.SMTPAuthenticationError as e:
print('邮件发送失败，认证错误:', e.smtp_code, e.smtp_error)
except smtplib.SMTPSenderRefused as e:
print('邮件发送失败，发件人被拒绝:', e.smtp_code, e.smtp_error)
except smtplib.SMTPRecipientsRefused as e:
print('邮件发送失败，收件人被拒绝:', e.smtp_code, e.smtp_error)
except smtplib.SMTPDataError as e:
print('邮件发送失败，数据接收拒绝:', e.smtp_code, e.smtp_error)
except smtplib.SMTPException as e:
print('邮件发送失败, ', str(e))
except Exception as e:
print('邮件发送异常, ', str(e))3。6以下：
# -*- coding:utf-8 -*-
import smtplib
import email
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
from email.mime.image import MIMEImage
from email.mime.base import MIMEBase
from email.mime.application import MIMEApplication
from email.header import Header
# 发件人地址，通过控制台创建的发件人地址
username = '***'
# 发件人密码，通过控制台创建的发件人密码
password = '***'
# 自定义的回复地址
replyto = '***'
# 收件人地址或是地址列表，支持多个收件人，最多30个
#receivers = ['xxx@alx.com', 'xxx@xx.com']
#rcptto = ','.join(rcptto)
rcptto = '***'
# 构建alternative结构
msg = MIMEMultipart('alternative')
msg['Subject'] = Header('自定义信件主题'.decode('utf-8')).encode()
msg['From'] = '%s <%s>' % (Header('自定义发信昵称'.decode('utf-8')).encode(), username)
msg['To'] = rcptto
msg['Reply-to'] = replyto
msg['Message-id'] = email.utils.make_msgid()
msg['Date'] = email.utils.formatdate()
# 构建alternative的text/plain部分
textplain = MIMEText('自定义TEXT纯文本部分', _subtype='plain', _charset='UTF-8')
msg.attach(textplain)
# 构建alternative的text/html部分
texthtml = MIMEText('自定义HTML超文本部分', _subtype='html', _charset='UTF-8')
msg.attach(texthtml)
# 发送邮件
try:
client = smtplib.SMTP()
#python 2.7以上版本，若需要使用SSL，可以这样创建client
#client = smtplib.SMTP_SSL()
#SMTP普通端口为25或80
client.connect('smtpdm.aliyun.com', 25)
#开启DEBUG模式
client.set_debuglevel(0)
client.login(username, password)
#发件人和认证地址必须一致
#备注：若想取到DATA命令返回值,可参考smtplib的sendmaili封装方法:
# 使用SMTP.mail/SMTP.rcpt/SMTP.data方法
client.sendmail(username, rcptto, msg.as_string())
#支持多个收件人
#client.sendmail(username, receivers, msg.as_string())
client.quit()
print '邮件发送成功！'
except smtplib.SMTPConnectError, e:
print '邮件发送失败，连接失败:', e.smtp_code, e.smtp_error
except smtplib.SMTPAuthenticationError, e:
print '邮件发送失败，认证错误:', e.smtp_code, e.smtp_error
except smtplib.SMTPSenderRefused, e:
print '邮件发送失败，发件人被拒绝:', e.smtp_code, e.smtp_error
except smtplib.SMTPRecipientsRefused, e:
print '邮件发送失败，收件人被拒绝:', e.smtp_code, e.smtp_error
except smtplib.SMTPDataError, e:
print '邮件发送失败，数据接收拒绝:', e.smtp_code, e.smtp_error
except smtplib.SMTPException, e:
print '邮件发送失败, ', e.message
except Exception, e:
print '邮件发送异常, ', str(e)