使用Python寄送電子郵件

python中的smtplib模組可以使用SMTP協議寄送電子郵件，

只要設定好郵件發送方，收件者，主題（可以為空白）和訊息（可以為空白），就可以把訊息發送到指定郵箱。

經過測試，比較方便。

測試代碼：

# MailClient class from smtplib import SMTPfrom time import *class MailClient:    def __init__(self):        self.SMTPServer = 'smtp.qq.com' #send server        self.SvrSuffix  = 'qq.com'        self.user = 'username' #user name        pnum = '12345678' #password        self.sendSvr = SMTP(self.SMTPServer)        self.log = self.sendSvr.login(self.user,pnum)#login the server                #print 'connect to Mail Server successfully.'            def SendMail(self,des, subj=None,info=None,PrintResult=False):        '''        mail info to des through default server        des: user@server.com        subj:mail subject        info:list or tuple of information to send        PrintResult: whether print the send result        '''        SrcInfo = 'From: '+self.user+'@'+self.SvrSuffix        To = 'To: '+str(des)        Sub = 'Subject: '+str(subj)        Header = [SrcInfo,To,Sub] #mail header        Msg = '\r\n\r\n'.join(['\r\n'.join(Header),'\r\n'.join(info)])        self.errs = self.sendSvr.sendmail(self.user+'@'+self.SvrSuffix,des,Msg)        #self.sendSvr.quit()        if PrintResult==False:            return        if(len(self.errs)!=0):            print "error info : "            for e in self.errs:                print e," ",self.errs[e]                return -1        else:            print "send to ",des,":"            for e in info:                print "  ",e            print "successfully."            return 0    def __del__(self):        #print 'deconstructor'        self.sendSvr.quit()        #print 'MailClient disconnected.'if __name__=='__main__':    b = time()    mc = MailClient()    s = 'null subject 2'    Text = ('Hello from your friend ','Best wishes.')    e = time()    print 'time 1 ',e-b    b=e    mc.SendMail('xxx@qq.com',s,Text,True)    e = time()    print 'time 2 ',e-b    b=e        mc.SendMail('yyy@qq.com',s,Text*2,True)    e = time()    del mc    print 'time cost ',e-b,'s.'

使用時先建立一個MailClient對象，然後調用該對象的SendMail方法（參數有：接收方，主題，訊息列表，列印發送結果開關）。

發送給不同的地址時只需要多次調用該方法。

【其實一次發送過程，內送郵件列表中接收地址也可以是多個，但是在測試時有一些問題，列表比較少（只有幾個）時沒問題，幾十個的時候伺服器就拒絕發送了。】

下面是一個測試代碼：

from time import *begin = time()##################################revr=[]##reveiveer listrevr.append('666666666@qq.com') #just for test start = 666666667num = 10while num>0:    revr.append(str(start)+'@qq.com')    start = start+1    num = num-1#for e in revr:#    print efrom MailClient import *mc = MailClient()errmail=[]for user in revr:    s = 'null subject'    Text = ('Hello from your friend ','Best wishes.')    try:        mc.SendMail(user,s,Text)    except:        #print "exception at ",user        errmail.append(user)del mcprint "Failed list(",len(errmail),"):"for e in errmail:    print eend = time()print "time cost: ",(end-begin)," s."#sleep(10)

修改發送郵件個數，就可以給某個區段的所有QQ號碼發送郵件。手機垃圾簡訊、垃圾郵件，大致就是這個道理吧。