用Perl的 Mail::Sender模块实现邮件发送

在监控系统中，监控服务器很多，如果要发送报警邮件，不必在每一台监控服务器上都开启SENDMAIL服务，只需要找一台机器开启SENDMAIL，通过以下脚本，用传统的SMTP的方式在监控机上都能发送报警邮件。

一、SENDMAIL的配置修改

（1）修改/etc/mail/sendmail.cf，将SMTP的端口监听在所有的IP上。

DaemonPortOptions=Port=smtp,Addr=0.0.0.0, Name=MTA

（2）修改/etc/mail/access，中继开放给要发送报警邮件的监控机。

127.0.0.1         RELAY

192.168.0.1       RELAY

192.168.0.2       RELAY

（3）重启SENDMAIL

/etc/init.d/sendmail restart

（4）开启随机自启

chkconfig --level 35 sendmail on

（5）测试邮件发送

mail -s "test mail" [email protected] < /tmp/test.txt

二、发送邮件需要用的模块Mail::Sender

三、中文字符编码问题

注意：要用charset => 'gb2312'，否则发送中文会有乱码，我之前用encoding=>’gb2312’，结果邮件正文不是乱码，可标题却变成了空白。

#!/usr/bin/perl

###################################################

# send_mail.pl

# Send mail.

# Created by qiudi(Liyanling): 2010.4.2

# Last modified by qiudi(Liyanling): 2010.4.2

###################################################

use strict;

use warnings;

use Mail::Sender;

use Time::localtime;

my $logtime = sprintf("%d-%02d-%02d %02d:%02d:%02d",

    localtime(time())->year+1900,localtime(time())->mon+1,

    localtime(time())->mday,localtime(time())->hour,

    localtime(time())->min,localtime(time())->sec);

 send_mail();

sub send_mail

{

         my $message = "以下是perl发送邮件测试。";

    my $space = "\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t";

    if ($message ne "")

    {

        $message ="您好！\n    $message\n\n\n"."

        $message .= $space."   Monitor center\n";

        $message .= $space."    Qiudi(Liyanling)\n";

        $message .= $space.$logtime;

        my $subject = "邮件测试";

        my $mailhost = '192.168.0.1';

        my $mailfrom = '[email protected]';

        my $mailto = '[email protected]';

        my $ccaddr = '[email protected]';

        print "Send mail ......\n";

        my $sender = new Mail::Sender{

            smtp => $mailhost,

            from => $mailfrom,

        };

        If ($sender->MailMsg({

                to => $mailto,

                cc => $ccaddr,

                subject => $subject,

                msg => $message,

                charset => 'gb2312'

            }) < 0) {

            die "$Mail::Sender::Error\n";

         }

        print "Mail send OK.\n";

        $sender->Close;

    }

}