为了解决这一问题,我用Python写了一个mail客户端,可以发送附件,是一个命令行程序.废话不多说.贴代码:

#!/usr/bin/env python
#-*- coding: utf8 -*-
'''
#=============================================================================
# FileName: mail.py
# Desc: To send email
# Author: cold
# Email: wh_linux@126.com
# HomePage: http://www.linuxzen.com
# Version: 0.0.1
# LastChange: 2012-04-21 16:37:20
# History:
#=============================================================================
'''

'''
用于发送邮件,可以发送附件
命令行程序
'''
import smtplib
from email.mime.text import MIMEText
from email.mime.multipart import MIMEMultipart
import sys



# 打印帮助信息
def helpinfo():
 print '''
 Useage: pymail -u user@domain -p passwd -h smtp server host -t to who [-a attachment file path] [-n attachment name]
 Useage: email content use . to end
 -h specify smtp server host
 -u which user you login the smtp server,and must with it domain
 -p the password of the smtp user
 -t The email recipient,multiple addresses can use ',' split
 -a Add attachment
 -n Secify attachment name in the email

 Author:cold(wh_linux@126.com)
 Homepge:http://www.linuxzen.com
 '''


# 所有选项
options = ['-t', '-a', '-n', '-h', '-u', '-p', '-s']

# 获取选项长度
argvnum = len(sys.argv)

# 检测命令行参数
for i in range(argvnum):
 if ( i %2 != 0):
 if (sys.argv[i] not in options):
 print 'Unknow option ', sys.argv[i] , ', Please use -h see help!'
 sys.exit(3)

# 如果是-h或者没有命令行参数则显示帮助
try:
 if sys.argv[1] == '-h' or len(sys.argv) == 0:
 helpinfo()
except:
 helpinfo()


# 检测-n参数
if ('-n' in sys.argv) and ('-a' not in sys.argv):
 print 'Error:option "-n" must use after -a'
 sys.exit(2)

# 下面则是获取各个参数内容
try:
 tmpmailto = sys.argv[sys.argv.index('-t') + 1]
 if ',' in tmpmailto:
 mailto = tmpmailto.split(',')
 else:
 mailto = [tmpmailto,]
except ValueError:
 print 'Error: need Mail Recipient'
 sys.exit(1)

haveattr=True

try:
 attrpath = sys.argv[sys.argv.index('-a') + 1]
 try:
 attrname = sys.argv[sys.argv.index('-n') +1 ]
 except ValueError:
 attrname = attrpath.split('/')[-1]
except:
 attrname = None
 haveattr = False
 attrpath = None


try:
 mail_host = sys.argv[sys.argv.index('-h') +1]
except ValueError:
 print 'Waring: No specify smtp server use 127.0.0.1'
 mail_host = '127.0.0.1'


try:
 mail_useremail = sys.argv[sys.argv.index('-u') +1]
except ValueError:
 print 'Waring: No specify user, use root'
 mail_useremail = 'root@localhost'

try:
 mail_sub = sys.argv[sys.argv.index('-s') + 1]
except:
 mail_sub = 'No Subject'

mail_user = mail_useremail.split('@')[0]
mail_postfix = mail_useremail.split('@')[1]

try:
 mail_pass = sys.argv[sys.argv.index('-p') +1]
except ValueError:
 mail_pass = ''




# 定义邮件发送函数
def send_mail(to_list, sub, content, haveattr, attrpath, attrname):
 me = mail_user + "<" + mail_user+"@"+mail_postfix +">"

 # 判断是否有附件
 if (haveattr):
 if (not attrpath):
 print 'Error : no input file of attachments'
 return False

 # 有附件则创建一个带附件的实例
 msg = MIMEMultipart()

 # 构造附件
 att = MIMEText(open(attrpath, 'rb').read(),'base', 'utf8')
 att["Content-Type"] = 'application/octest-stream'
 att["Content-Disposition"] = 'attachment;filename="'+ attrname +'"'
 msg.attach(att)
 msg.attach(MIMEText(content))
 else:
 # 无责创建一个文本的实例
 msg = MIMEText(content)


 # 邮件头
 msg['Subject'] = sub
 msg['From'] = me
 msg['To'] = ";".join(to_list)
 try:
 # 发送邮件
 s = smtplib.SMTP()
 s.connect(mail_host)
 if (mail_host != '127.0.0.1'):
 s.login(mail_user, mail_pass)
 s.sendmail(me, to_list, msg.as_string())
 s.close()
 return True
 except Exception, e:
 print str(e)
 return False

if __name__ == '__main__':

 try:
 content = ''
 while True:
 c = raw_input('')
 if c == '.':
 break
 content += c + '
'
 except EOFError:
 for line in sys.stdin:
 content += line
 if send_mail(mailto, mail_sub, content, haveattr, attrpath, attrname):
 print "Success"
 else:
 print "Failed"

将这个脚本保存为pymail放到/usr/bin/下,并赋予其执行权限:

chmod +x /usr/bin/pymail

可以使用 -h指定smtp发件服务器,默认认为指定-h需要认证, 所以就需要smtp服务器支持认证,同时需要-u指定用户名(需加"@域名"),-p指定密码. 如果不指定-h就会使用本地smtp服务器,默认不需要认证,所以本地的smtp服务器就不能支持认证,同时不需指定-u,-p参数

-t 指定收件人多个可用,号分割.
-a 指定附件路径
-n 指定附件名(可省略)
-h 显示帮助信息.
-s 指定邮件主题

执行后会要求输入邮件内容,写完用.结束 也可以用管道下面给出几个实例:

#使用本地smtp服务发送
echo 'linuxzen.com backup' | pymail -s "Linuxzen backup" -t 123456@qq.com -a /tmp/linuxzen.tar.gz
# 使用126邮箱发送
echo 'linuxzen.com backup' | pymail -u linuxzen@126.com -p linuxzen.com -h smtp.126.com -s 'Linuxzen backup " -t 123456@qq.com -a /tmp/linuxzen.tar.gz 

# 不使用管道发送
pymail -u linuxzen@126.com -p linuxzen.com -h smtp.126.com -s 'hello world' -t 123456@qq.com -a /tmp/linuxzen.tar.gz
Hello
this is a test mail
.

下面之前使用的mysql定时备份的脚本:

#!/bin/bash
export PATH=/usr/kerberos/sbin:/usr/kerberos/bin:/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin
DATE=`date +%Y%m%d`
mysqldump -u root blogdata > /tmp/blogdate."$DATE".sql
cd /tmp
tar -zcf blogdata."$DATE".sql.tar.gz blogdata."$DATE".sql
uuencode blogdata."$DATE".sql.tar.gz blogdata."$DATE".sql.tar.gz | mail -s 'MySQL Backup' 123456@qq.com

没有命令uuencode安装sharutils包即可

yum -y install sharutils

然后使用crontab调用这个脚本定时执行,前面说了 这个脚本在CentOS5.x下正常工作,但是放到CentOS6下就不带附件,所以使用我们自己编写的python脚本脚本内容如下:

#!/bin/bash
export PATH=/usr/kerberos/sbin:/usr/kerberos/bin:/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin
DATE=`date +%Y%m%d`
mysqldump -u root blogdata > /tmp/myblog."$DATE".sql
cd /tmp
tar -zcf blogdata."$DATE".sql.tar.gz myblog."$DATE".sql
echo 'MySQL backup' | pymail -u linuzen@126.com -p linuxzen.com -h smtp.126.com -s 'MySQL backup' -a /tmp/blogdata."$DATE".sql.tar.gz -t 123456@qq.com

我们使用126邮箱来发送 这样就可以把自带的sendmail 停掉:

service sendmail stop
chkonfig --del sendmail