试图在电子邮件签名中显示公司徽标,但在各种电子邮件客户端默认情况下不阻止该徽标。首先,我尝试将图像上传到公司网站,但它返回如下:

因此,我尝试将其实现为base64映像。它适用于雷鸟..。

但它并没有在GMail中显示.

从这里我该怎么办?下面的源代码..。
/*
* 提示:该行代码过长,系统自动注释不进行高亮。一键复制会移除系统注释
* <div><img src="data:image/png;base64,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" alt="" /></div>
*/
<p><span>Griffin Wiebel</span> / Webmaster<br /><a href="https://petrode.com/roundcube/?_task=mail&_action=preview&_uid=9&_mbox=INBOX&_framed=1" target="_blank">303-960-4507</a>/ <a href="mailto:griffinwiebel@petrode.com" target="_blank">griffinwiebel@petrode.com</a></p>
<p><span>PetroDE</span> <span>Office: </span><span>123-456-7890</span> <br /><span>2150 W. 6th Avenue, Suite H Broomfield, CO 80020</span><br /><a href="https://petrode.com/" target="_blank">https://petrode.com/</a></p>
<p> </p>
<p>This e-mail message may contain confidential or legally privileged information and is intended only for the use of the intended recipient(s). Any unauthorized disclosure, dissemination, distribution, copying or the taking of any action in reliance on the information herein is prohibited. E-mails are not secure and cannot be guaranteed to be error free as they can be intercepted, amended, or contain viruses. Anyone who communicates with us by e-mail is deemed to have accepted these risks. Company Name is not responsible for errors or omissions in this message and denies any responsibility for any damage arising from the use of e-mail. Any opinion and other statement contained in this message and any attachment are solely those of the author and do not necessarily represent those of the company.</p>编辑:因为有些人说这是“不可能的”,这里是客户端发送给我们的签名图像。图片A在雷鸟,图片B在GMail。没有做任何修改。
图A

图B

发布于 2014-06-19 19:11:41
您可以尝试使用此网站上提供的“图片到css”工具:http://www.imgtocss.com/。
以下是使用上述徽标的结果:
<table cellpadding=0 cellspacing=0 height=52 width=250 style="font-size:0px;height:52;width:250">
<tr>
<td>
<table cellpadding=0 cellspacing=0 height=52 width=50 bgcolor="#ffffff" style="font-size:0px;height:52px;width:50px">
<tr height=0>
<td width=1 />
<td width=1 />
<td width=1 />
...
Full code in the fiddle
...
</table>http://jsfiddle.net/5tWU7/
活动监视器有一篇很好的文章和电子邮件客户端(https://www.campaignmonitor.com/resources/will-it-work/image-blocking/)中显示的图像的详细信息,以及帮助解决图像显示问题的一个很好的指南。
另一种绕过规则的方法是将较小的页脚图像附加到电子邮件中。似乎(according to this accepted answer),“作为经验法则,电子邮件客户端被配置成默认显示附加的图像(例如,那些带有cid: URI方案的图像).”
发布于 2014-06-26 18:44:04
简单的答案是,电子邮件在历史上并不意味着有图像。它的本意是原始文本。
Gmail并不是只阻塞图像,而是HTML。这是安全问题。这就是为什么你有一个安全的发件人白名单本质上。
要求用户将您添加到列表中将自动加载图像。
https://stackoverflow.com/questions/24129924
复制相似问题