一、一般發郵件的方法

Python對SMTP支援有smtplib和email兩個模組，email負責構造郵件，smtplib負責傳送郵件。

注意到構造MIMETEXT物件時，第一個引數就是郵件正文，第二個引數是MIME的subtype，傳入'plain'表示純文字，最終的MIME就是‘text/plain’，最後一定要用utf-8編碼保證多語言相容性。

然後，通過SMTP發出去：

 1 # coding:utf-8
 2 import smtplib
 3 from email.mime.text import MIMEText
 4 
 5 
 6 class SendMail:
 
 7 
 8     def send_mail(self, receiver_list, sub, content):
 9         host = "smtp.qq.com"            # 伺服器地址
10         sender = "123@qq.com"     # 發件地址
11         password = "pwd"
12         #郵件內容
13         message = MIMEText(content, _subtype='plain', _charset='utf-8')
14         message['Subject
 
'] = sub   # 郵件主題
15         message['From'] = sender   
16         message['To'] = ";".join(receiver_list)   # 收件人之間以；分割
17         server = smtplib.SMTP()
18         # 連線伺服器
19         server.connect(host=host)
20         # 登入
21         server.login(user=sender, password=password)
22         server.sendmail(from_addr=sender, to_addrs=receiver_list, msg=message.as_string())
 
23         server.close()
24 
25 if __name__ == '__main__':
26     send = SendMail()
27     receive = ["123qq.com", "[email protected]"]
28     sub = "測試郵件"
29     content = "測試郵件"
30     send.send_mail(receive, sub, content)

其實，這段程式碼也並不複雜，只要你理解使用過郵箱傳送郵件，那麼以下問題是你必須要考慮的：

• 你登入的郵箱帳號/密碼
• 對方的郵箱帳號
• 郵件內容（標題，正文，附件）
• 郵箱伺服器（SMTP.xxx.com/pop3.xxx.com）

二、利用yagmail庫傳送郵件

yagmail 可以更簡單的來實現自動發郵件功能。

首先需要安裝庫： pip install yagmail

然後：

 1 import yagmail
 2 
 3 
 4 class SendMail:
 5 
 6     def send_mail(self, receiver_list, sub, content, attach=None):
 7         host = "smtp.qq.com"
 8         sender = "[email protected]"
 9         password = "ryprfozwyqawbgfg"
10         # 連線伺服器
11         yag = yagmail.SMTP(user=sender, password=password, host=host)
12         # 郵件內容
13         yag.send(to=receiver_list, subject=sub, contents=content, attachments=attach)
14 
15 
16 if __name__ == '__main__':
17     send = SendMail()
18     receive = ["[email protected]", "[email protected]"]
19     sub = "測試郵件"
20     content = ["yagmail測試郵件", "\n", "hello word"]
21     attch = "C:\\Users\\Administrator\\Desktop\\10.jpg"
22     send.send_mail(receive, sub, content, attch)

另外，附件也可以之間寫在content中，即conten = ["yagmail測試郵件", "\n", "hello word", "C:\\Users\\Administrator\\Desktop\\10.jpg"]

少寫了好幾行程式碼