发送邮件附件

简单描述

如果仅仅只是发送不带附件的邮件，请参考如何用Net::SMTP发送邮件。

这里使用 MIME::Lite 模块来发送附件。分为两种情况，一种是 SMTP 服务器不需要验证的，另一种是需要验证/auth 的。

情况一：SMTP 服务器不需要验证

这种情况下可以参考 perldoc MIME::Lite. 还有个更详细的例子在 Cooking with perl.
一个简单的 Example:

use MIME::Lite;
 
my $msg = MIME::Lite->new(From    => [email protected]',
             To      => [email protected]',
             Subject => 'My photo for the brochure',
             Type    => 'multipart/mixed');
$msg->attach(Type        => 'image/jpeg',
             Path        => '/Users/gnat/Photoshopped/nat.jpg',
             Filename    => 'gnat-face.jpg');
$msg->attach(Type        => 'TEXT',
             Data        => 'I hope you can use this!');
#$msg->send(  );            # default is to use sendmail(1)
# now we use smtp.
$msg->send('smtp', 'mailserver.example.com');

情况二：SMTP 服务器需要验证/auth

现在的 SMTP 服务器大部分都需要验证，我猜测可能的原因是为了防止垃圾邮件。
MIME::Lite 中是不支持 SMTP 验证/auth 的。所以我们一般将 MIME::Lite 转为 string, 然后通过验证后的 Net::SMTP 来发送。详细的代码如下（已测试成功）：

use Net::SMTP;
use MIME::Lite;

# setting
my $mailhost = 'smtp.163.com';
my $username = 'usr';
my $password = 'pwd';
my $from = [email protected]'; # your email on that smtp host
my $to = [email protected]'; # the recipient
my $subject = 'It\'s a test mail with attachment'; # the email title
my $content = 'emailed from fayland.'; # the content of email
my $attachment = 'E:/test.gif';

$smtp = Net::SMTP->new($mailhost, Timeout => 120, Debug => 1);

# anth login
$smtp->auth($username, $password);

# attachment
my $msg = MIME::Lite->new(
    From    => $from,
    To      => $to,
    Subject => $subject,
    Type    => 'TEXT',
    Data    => $content,
);

# Attach 
$msg->attach(
    Type     => 'image/gif', # the attachment mime type
    Path     => $attachment, # local address of the attachment
    Filename => 'asuwish.gif', # the name of attachment in email
);

my $str = $msg->as_string() or die "Convert the message as a string: $!\n";

$smtp->mail($from);
$smtp->to($to);
$smtp->data();
$smtp->datasend($str);
$smtp->dataend();
$smtp->quit;

参考

• http://forums.devshed.com/archive/t-184255/Send-Attachments-using-MimeLite-and-NetSMTP
  Send Attachments using Mime::Lite and Net::SMTP?
• perldoc MIME::Lite, Net::SMTP