Embed Attachments in Markdown/HTML Emails
When I'm composing Markdown/HTML emails in Airmail, it would be nice if I could embed attachments (esp. images) in the message using CIDs (see http://stackoverflow.com/a/21000242).
E.g., something like this:
- Attach a file named "screenshot.jpg" to an email.
- Reference the file in my message text:
- Markdown:

- HTML:
<img src="cid:screenshot.jpg" alt="...">
- Markdown:
Most other email clients that I've used have this feature; it would be awesome if Airmail incorporated it as well!

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David Eglin commented
This is a great suggestion, and one that I personally could really do with being implemented – My company are using Outlook for their email and have signatures set up with cid embedded images but, because I prefer to use something other than Outlook, my signature is creating attachments instead.
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Michael Wills commented
This would be a great addition. Currently attaching an image does not create a CID. Only copying an image in HTML mode creates the CID. It would be great to be able to use the filename as the CID assuming there are no file name clashes. Otherwise perhaps a context-click to copy the CID of an attachment could be used? Or perhaps dragging an attachment into the body of a markdown email would create a markdown image with the cid pre-populated?