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I am trying to create Mac mail signature from HTML.

I do all parts ok, but if I use local images from file, images show when composing the mail, but the receiver will not get them. 

Message-Id: <4753944C-A55A-4305-97F1-A6F02620AC8C>
Mime-Version: 1.0 (Mac OS X Mail 13.4 \(3608.80.23.2.2\))
Content-Type: multipart/related;
    type="text/html";
    boundary="Apple-Mail=_B3C48E7A-0D91-4F4C-A1F6-099510D37FA4"


--Apple-Mail=_B3C48E7A-0D91-4F4C-A1F6-099510D37FA4
Content-Transfer-Encoding: quoted-printable
Content-Type: text/html;
    charset=utf-8

....
<img border=0 width=92
  height=22 src="file:///Users/zadravecm/Library/Mail/V7/MailData/Signatures/image001.png" align=left
  style='margin-top:0px;margin-bottom:15px'>

how to force image to embed into email?

Marko Zadravec
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1 Answers1

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The receiver is not seeing the image because the image src references your computer (in this case the file file:///Users/zadravecm/Library/Mail/V7/MailData/Signatures/image001.png"). For the image to be available on the receiver, you have a few options

  • Upload the image to a online server and use the server url as the img src
  • Embed the image as a base64 String
  • Attach the image to your email and reference it in your html
petrubear
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  • I want to embed as base64, but the syntax for the mail signature is pretty obtuse. It appears that the signature is encoded even after base64 encoding. Any suggestions? – Andrew Wolfe Aug 08 '22 at 17:34