我想发送一封带有
Email::Stuffer
的电子邮件,并参考电子邮件 html 部分中的附件图像。为此,我需要带有图像的 MIME 部分才能拥有 ID,但我无法 Email::Stuffer
添加 ID。
#!perl
use strict;
use warnings;
use Email::Stuffer;
my $stuffer = Email::Stuffer
->from('[email protected]')
->to('[email protected]')
->subject('mcve')
->text_body('see attached image')
->attach_file('image.png');
print $stuffer->as_string(), "\n\n";
my @parts = $stuffer->email->subparts;
my $attachment = $parts[1];
my %headers = $attachment->header_str_pairs();
print "CID header: ", $headers{'Content-ID'}, "\n\n";
奇怪的是,它打印的内容看起来像内容 ID,即使它打印的 mime 结构没有
Content-ID
标头:
Date: Sat, 28 Oct 2023 10:33:05 -0500
MIME-Version: 1.0
From: [email protected]
To: [email protected]
Subject: mcve
Content-Transfer-Encoding: 7bit
Content-Type: multipart/mixed; boundary=16985071850.4fFe46cEc.181699
--16985071850.4fFe46cEc.181699
Date: Sat, 28 Oct 2023 10:33:05 -0500
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: quoted-printable
see attached image=
--16985071850.4fFe46cEc.181699
Date: Sat, 28 Oct 2023 10:33:05 -0500
MIME-Version: 1.0
Content-Type: image/png; name=image.png
Content-Transfer-Encoding: base64
Content-Disposition: inline; filename=image.png
(some base64 data here)
--16985071850.4fFe46cEc.181699--
CID header: <16985071854.8a407.181699@perle>
如果我在查询内容 id 标头后打印并没有什么区别,所以要求一个并不会神奇地添加它。
当我使用
attach_file('image.png', 'Content-ID' => 'my@id');
而不是普通的 attach
时,它会向 content-id
标头添加 content-type
属性,如下所示:Content-Type: image/png; content-id=my@id; name=image.png
。
我尝试手动向图像部分添加标题
$headers{'Content-ID'} = $cid;
$attachment->header_str_set('Content-ID' => [$cid]);
但是当我将电子邮件打印为文本时,
Content-ID
标题仍然不显示。
如何让
Email::Stuffer
将 Content-ID
标题添加到图像部分?
如何让 Email::Stuffer 将 Content-ID 标头添加到图像部分?
我做了一些调试,对脚本的以下修改似乎有效:
$stuffer->email->subparts
,而使用 $stuffer->parts
$attachment->header_str_set('Content-ID' => [$cid]);
,而使用 $attachment->header_set('Content-ID', $cid);
示例:
# ... Previous part of script as before...
my @parts = $stuffer->parts;
my $attachment = $parts[1];
$attachment->header_set('Content-ID', "<image.png>");
print $stuffer->as_string(), "\n\n";
输出:
[...]
Date: Sat, 28 Oct 2023 23:29:04 +0200
MIME-Version: 1.0
Content-Type: image/png; name=image.png
Content-Transfer-Encoding: base64
Content-Disposition: inline; filename=image.png
Content-ID: <image.png>
[...]