Python3实现126邮箱163邮箱SMTP发送邮件，python3smtp,Email起到提醒作

Python3实现126邮箱163邮箱SMTP发送邮件，python3smtp,Email起到提醒作

Email起到提醒作用，当爬虫过程中遇到异常或者服务器遇到问题，可以通过Email及时向自己报告。
发送邮件的协议是STMP，python内置对SMTP的支持，可以发送纯文本邮件、html邮件以及带附件的邮件。

SMTP协议

首先了解SMTP(简单邮件传输协议)，邮件传送代理程序使用SMTP协议来发送电邮到接收者的邮件服务器。SMTP协议只能用来发送邮件，不能用来接收邮件，而大多数的邮件发送服务器都是使用SMTP协议。SMTP协议的默认TCP端口号是25。

发送邮件之前的配置：

上面说了是使用SMTP协议发送的邮件，所以需要先查看你的发件人邮箱是否有开启SMTP协议，如没有，则需要开启，我测试使用的是163.com的邮箱作为发信人邮箱，在设置中开启SMTP协议如下图所示。

构造一个简单的纯文本邮件

from email.mime.text import MIMEText
msg = MIMEText(‘Python爬虫运行异常，异常信息为遇到HTTP 403‘, ‘plain‘, ‘utf-8‘)
构造MIMEText对象时需要三个参数
邮件正文，‘Python爬虫运行异常，异常信息为遇到HTTP 403‘
MIMEL的subtype，‘plain‘表示纯文本
编码格式，‘utf-8‘

例子（1）

import smtplibfrom email.header import Headerfrom email.mime.text import MIMEText # 第三方 SMTP 服务mail_host = "smtp.126.com"      # SMTP服务器mail_user = "[email protected]"                  # 用户名mail_pass = "******"               # 授权密码，非登录密码 sender = ‘[email protected]‘    # 发件人邮箱(最好写全, 不然会失败)receivers = [‘[email protected]‘]  # 接收邮件，可设置为你的QQ邮箱或者其他邮箱 content = ‘Python爬虫运行异常‘title = ‘测试‘  # 邮件主题 def sendEmail():     message = MIMEText(content, ‘plain‘, ‘utf-8‘)  # 内容, 格式, 编码    message[‘From‘] = "{}".format(sender)    message[‘To‘] = ",".join(receivers)    message[‘Subject‘] = title     try:        smtpObj = smtplib.SMTP_SSL(mail_host, 465)  # 启用SSL发信, 端口一般是465        smtpObj.login(mail_user, mail_pass)  # 登录验证        smtpObj.sendmail(sender, receivers, message.as_string())  # 发送        print("mail has been send successfully.")    except smtplib.SMTPException as e:        print(e) def send_email2(SMTP_host, from_account, from_passwd, to_account, subject, content):    email_client = smtplib.SMTP(SMTP_host)    email_client.login(from_account, from_passwd)    # create msg    msg = MIMEText(content, ‘plain‘, ‘utf-8‘)    msg[‘Subject‘] = Header(subject, ‘utf-8‘)  # subject    msg[‘From‘] = from_account    msg[‘To‘] = to_account    email_client.sendmail(from_account, to_account, msg.as_string())     email_client.quit() if __name__ == ‘__main__‘:    sendEmail()

（2）

 1 import smtplib 2 from email.header import Header 3 from email.mime.text import MIMEText 4   5 # 第三方 SMTP 服务 6 mail_host = "smtp.126.com"      # SMTP服务器 7 mail_user = "[email protected]"                  # 用户名 8 mail_pass = "******"               # 授权密码，非登录密码 9  10 sender = ‘[email protected]‘    # 发件人邮箱(最好写全, 不然会失败)11 receivers = [‘[email protected]‘]  # 接收邮件，可设置为你的QQ邮箱或者其他邮箱12  13 content = ‘聪明的，你告诉我，我们的日子为什么一去不复返呢？‘14 title = ‘匆匆‘  # 邮件主题15  16 def sendEmail():17  18     message = MIMEText(content, ‘plain‘, ‘utf-8‘)  # 内容, 格式, 编码19     message[‘From‘] = "{}".format(sender)20     message[‘To‘] = ",".join(receivers)21     message[‘Subject‘] = title22  23     try:24         smtpObj = smtplib.SMTP_SSL(mail_host, 465)  # 启用SSL发信, 端口一般是46525         smtpObj.login(mail_user, mail_pass)  # 登录验证26         smtpObj.sendmail(sender, receivers, message.as_string())  # 发送27         print("mail has been send successfully.")28     except smtplib.SMTPException as e:29         print(e)30  31 def send_email2(SMTP_host, from_account, from_passwd, to_account, subject, content):32     email_client = smtplib.SMTP(SMTP_host)33     email_client.login(from_account, from_passwd)34     # create msg35     msg = MIMEText(content, ‘plain‘, ‘utf-8‘)36     msg[‘Subject‘] = Header(subject, ‘utf-8‘)  # subject37     msg[‘From‘] = from_account38     msg[‘To‘] = to_account39     email_client.sendmail(from_account, to_account, msg.as_string())40  41     email_client.quit()42  43 if __name__ == ‘__main__‘:44     sendEmail()45     # receiver = ‘***‘46     # send_email2(mail_host, mail_user, mail_pass, receiver, title, content)

终端显示发送成功。

1 wljdeMacBook-Pro:Desktop wlj$ python3 126.py2 mail has been send successfully.3 wljdeMacBook-Pro:Desktop wlj$ 

如果测试出现报错，请看网易邮箱给出的状态码及含义。

Python3实现126邮箱163邮箱SMTP发送邮件