使用Python腳本進行服務器監控時，當達到告警閥值時，需要郵件通知維護人員進行處理。 本文針對發郵件相關的操作進行了封裝，以方便后續工作中使用。    使用Python發郵件，主要用到smtplib和email兩個模塊。

#!/usr/bin/python

encoding=utf-8
Filename: send_email.py
from email.mime.image import MIMEImage
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText

import smtplib
class SendEmail:

# 構造函數：初始化基本信息
def __init__(self, host, user, passwd):
    lInfo = user.split("@")
    self._user = user
    self._account = lInfo[0]
    self._me = self._account + "<" + self._user + ">" 

    server = smtplib.SMTP()  
    server.connect(host)  
    server.login(self._account, passwd)
    self._server = server      

# 發送文件或html郵件    
def sendTxtMail(self, to_list, sub, content, subtype='html'):    
    # 如果發送的是文本郵件，則_subtype設置為plain
    # 如果發送的是html郵件，則_subtype設置為html
    msg = MIMEText(content, _subtype=subtype, _charset='utf-8')  
    msg['Subject'] = sub  
    msg['From'] = self._me  
    msg['To'] = ";".join(to_list)  
    try:
        self._server.sendmail(self._me, to_list, msg.as_string())   
        return True  
    except Exception, e:  
        print str(e)  
        return False

# 發送帶附件的文件或html郵件       
def sendAttachMail(self, to_list, sub, content, subtype='html'):
    # 創建一個帶附件的實例
    msg = MIMEMultipart()  
    # 增加附件1
    att1 = MIMEText(open(r'D:\javawork\PyTest\src\main.py','rb').read(), 'base64', 'utf-8')
    att1["Content-Type"] = 'application/octet-stream'
    # 這里的filename可以任意寫，寫什么名字，郵件中顯示什么名字
    att1["Content-Disposition"] = 'attachment; filename="main.py"'
    msg.attach(att1)

    # 增加附件2
    att2 = MIMEText(open(r'D:\javawork\PyTest\src\main.py','rb').read(), 'base64', 'utf-8')
    att2["Content-Type"] = 'application/octet-stream'
    att2["Content-Disposition"] = 'attachment; filename="main.txt"'
    msg.attach(att2)

    # 增加郵件內容
    msg.attach(MIMEText(content, _subtype=subtype, _charset='utf-8'))

    msg['Subject'] = sub  
    msg['From'] = self._me
    msg['To'] = ";".join(to_list)

    try:
        self._server.sendmail(self._me, to_list, msg.as_string())   
        return True  
    except Exception, e:  
        print str(e)  
        return False
 # 發送帶附件的文件或html郵件       
def sendImageMail(self, to_list, sub, content, subtype='html'):
    # 創建一個帶附件的實例
    msg = MIMEMultipart()

    # 增加郵件內容
    msg.attach(MIMEText(content, _subtype=subtype, _charset='utf-8'))

    # 增加圖片附件
    image = MIMEImage(open(r'D:\javawork\PyTest\src\test.jpg','rb').read())
    #附件列表中顯示的文件名
    image.add_header('Content-Disposition', 'attachment;filename=p.jpg')     
    msg.attach(image)  

    msg['Subject'] = sub  
    msg['From'] = self._me
    msg['To'] = ";".join(to_list)

    try:
        self._server.sendmail(self._me, to_list, msg.as_string())   
        return True  
    except Exception, e:  
        print str(e)  
        return False

# 析構函數：釋放資源  
def __del__(self):
    self._server.quit()
    self._server.close()


mailto_list = ['xxx@163.com'] 
mail = SendEmail('smtp.163.com', 'xxx@163.com', 'xxxxxx')
if mail.sendTxtMail(mailto_list, "測試郵件", "hello world！<br><br><h1>你好，發送文本文件測試<h1>"):

    print "發送成功"

else:

    print "發送失敗"
if mail.sendAttachMail(mailto_list, "測試郵件-帶兩個附件", "hello world！<br><br><h1>你好，發送文本文件測試<h1>"):

    print "發送成功"

else:

    print "發送失敗"
if mail.sendImageMail(mailto_list, "測試郵件-帶一個圖片的附件", "hello world！<br><br><h1>你好，發送文本文件測試<h1>"):

    print "發送成功"

else:

    print "發送失敗"</pre>