python （18）在linux中如何实现定时发送邮件到指定邮箱，监测任务

最近要用到，定时发送邮件功能：

如何定时，当然要用到linux中crontab了

如下的代码能够定时发送邮件

#!/usr/bin/env python
# -*- coding=utf-8 -*-
import smtplib
from email.mime.text import MIMEText
import threading
import time, datetime

mailto_list=["lovychen@126.com"] #里面是对方的邮箱
#-----------QQ邮箱发送设置----------------------
mail_server="smtp.qq.com"#以qq邮箱为例子，里面是QQ邮箱的服务，换成其他邮箱需要更改服务
mail_user=""#这是QQ邮箱的账号
mail_pass=""#如果是其他的可以直接填上密码，如果用qq之类的，或者邮箱未开服务，会提醒你打开下面的链接
#QQ邮箱需要去官方打开服务：http://service.mail.qq.com/cgi-bin/help?subtype=1&&id=28&&no=1001256
def send_mail(to_list, sub, content):
    msg = MIMEText(content,'plain','utf-8')
    msg["Accept-Language"]="zh-CN"
    msg["Accept-Charset"]="ISO-8859-1,utf-8"
    msg['Subject'] = sub
    msg['From'] = mail_user
    msg['To'] = ";".join(to_list)
    try:
        server = smtplib.SMTP()
        server.connect(mail_server)
        server.starttls()
        server.login(mail_user, mail_pass)
        server.sendmail(mail_user, to_list, msg.as_string())
        server.close()
        return True
    except Exception, e:
        print str(e)
        return False

def getDate():
    return str(datetime.datetime.utcfromtimestamp(time.time())+datetime.timedelta(hours=8))

def send_warning_mail(title, info):
    nowTime = getDate()
    try:
        t = threading.Thread(target=send_mail, args=(mailto_list, title, str(nowTime) + " | " + str(info)))
        t.start()
    except:pass
    # send_mail(mailto_list, "mysql异常", info)

if __name__ == '__main__':
    send_warning_mail("this is title", "\nthis is content")
#     print 111

 这是能够加上附件的邮件发送：

#!/usr/bin/env python
#coding=utf-8
import smtplib
from email.MIMEText import MIMEText
from email.MIMEMultipart import MIMEMultipart
from email.MIMEBase import MIMEBase
from email import Encoders
import time
mail_body='hello, this is the mail content'
mail_from=''#发件人的邮箱
mail_to=['']#收件人邮箱
# 构造MIMEMultipart对象做为根容器
msg=MIMEMultipart()
 
# 构造MIMEText对象做为邮件显示内容并附加到根容器
body=MIMEText(mail_body)
msg.attach(body)

# 构造MIMEBase对象做为文件附件内容并附加到根容器
# 等同于如下3行
#contype = 'application/octet-stream'
#maintype, subtype = contype.split('/', 1)
#part = MIMEBase(maintype, subtype)
part = MIMEBase('application', 'octet-stream')

# 读入文件内容并格式化，此处文件为当前目录下，也可指定目录 例如：open(r'/tmp/123.txt','rb')
part.set_payload(open('123.txt','rb').read())
Encoders.encode_base64(part)
## 设置附件头
part.add_header('Content-Disposition', 'attachment; filename="herb.zip"')
msg.attach(part)

# 设置根容器属性
msg['Subject']='this is the title'
msg['From']=mail_from
msg['To']=';'.join(mail_to)
msg['date']=time.strftime('%a, %d %b %Y %H:%M:%S %z')
#如上得到了格式化后的完整文本msg.as_string()
#用smtp发送邮件
smtp=smtplib.SMTP()
smtp.connect('')#服务，如果是163的邮箱，就填上smtp.163.com
smtp.login('发件的邮箱','发件的密码')
smtp.sendmail(mail_from,mail_to,msg.as_string())
smtp.quit()
print 'ok'