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Old 25 May 2022, 03:37 AM   #2
n5bb
Intergalactic Postmaster
 
Join Date: May 2004
Location: Irving, Texas
Posts: 8,930
That does not appear to be possible with the current Fastmail web user interface.
  • In Rich Text mode you can use the user interface button to insert the actual image into the email.
  • In Rich Text mode you can instead insert a link to the image. The link (but not the image itself) will be shown when the email is read.
  • But you can't add a remotely served image as you described. There is no way to edit the raw HTML content, which would allow you to do this.
  • Remotely served images allow "web bugs", which allow the sender of an email to see if someone is reading their message. Fastmail can block these when receiving emails, and it appears they block you from generating them.
Of course, you can use a conventional email client sending through your Fastmail account SMTP server and use a client which allows you to edit the raw HTML content of the message.

Bill
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