问题
I'm making a web app in Django that sends user an image to their email.
The way that seems most attractive to me for sending the image is in the data:uri format.
However, I tested sending this email with a data:uri image in it to my GMail account, and the email shows, but without the image!
I know that Chrome and Firefox can both open data:uri images. So it's not a browser problem. But I don't see the data:uri image in GMail at all.
Does GMail not support data:uri images? Or possibly I'm sending them wrong?
回答1:
It's not supported.
Mail clients simply remove this from your post.
Here is a good reference of what can be supported:
http://www.campaignmonitor.com/css/
回答2:
Not supported. It's also blocked in other clients like Outlook.
Some reasons:
- help avoid viewing potentially offensive material
- with low-bandwidth connections, blocking inline images allows the client to decide whether a particular image warrants the time and bandwidth required to download it
You can attach an image with the src attribute pointing to a separate part of the message using a Content ID (CID).
<img src="cid:imagecid"/>
--001a1141059012513a055a1b9499
Content-Type: image/jpeg
Content-Transfer-Encoding: base64
Content-ID: <imagecid>
R0lGODlhDwAPAKIEAP/ql9yuA...
--001a1141059012513a055a1b9499--
来源：https://stackoverflow.com/questions/8580355/can-you-send-images-in-datauri-format-to-gmail