how do I configure it so that the recipient clicks on the image to link to a URL?

[Summer]

I uploaded an image in the email, how do I configure it so that the recipient clicks on the image to link to a URL? I don't want to use a remote picture address

[Summer]

For example, how to insert base64 images?

[victor]

A simple and effective way:
- When creating an email, make sure that the HTML option is enabled (screenshot 1).
- Copy and paste the desired picture, or drag it, or use the picture insertion form (screenshot 1).
- Use the link creation form (screenshot 2).
- Go to Code View </> mode (screenshot 3) and replace the phrase

forum test

to

<img src="?entryPoint=attachment&amp;id=66d5b72d45f11a065" style="width: 81.007px;">

- Delete the redundant code and save the changes (screenshot 4). You should be left with something like this:

<p><a href="https://forum.espocrm.com/forum/general/109793-how-do-i-configure-it-so-that-the-recipient-clicks-on-the-image-to-link-to-a-url" target="_blank"><img src="?entryPoint=attachment&amp;id=66d5b72d45f11a065" style="width: 81.007px;"></a></p>

- You will get the result as in screenshot 5.

For base64 images, you should replace the image reference in src with something like this:

<img src="data:image/png;base64, iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg==" />

And the final code of your linked image will be something like this:

<p><a rel="noopener noreferrer" href="https://forum.espocrm.com/forum/general/109793-how-do-i-configure-it-so-that-the-recipient-clicks-on-the-image-to-link-to-a-url" target="_blank"><img src="data:image/png;base64, iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg=="></a></p>

It will also be useful:

https://www.tutorialspoint.com/how-to-use-an-image-as-a-link-in-html

https://sentry.io/answers/how-do-i-display-a-base64-image-in-html/