Inserting images into html emails?

Question

HTML

Gentlemen, I will immediately make a reservation that I am not an advanced coder!
The question is, you need to make an html letter, of course with pictures, the only problem is that it was not possible to attach the picture (s).
I also encoded it through base64 (website) and tried it without encoding, shove it through the services for creating letters, well, no way!
I looked at the code of pictures from different mailing lists - they go through af12.mail.ru. Tell me, how can I compress a picture so that it goes through af12.mail.ru in the end? Those. something like me going to the service, uploading a picture, getting a code (in the form of a link - so that I can insert everything without dancing with a tambourine) and put it in the "image link" field in the email editor
Or at least just to, was attached)))
PS: I make letters through app.makemail.ru
Zyy: I apologize for the possibly stupid question, I just don’t know how to google already)

Answer 1

Insert an image into the body of the email <img src="cid:ffffff"> And the MIME part containing the image must have Content-ID: ffffff