1. Make sure your logo/picture/image is online in a URL. (pdf,jpeg etc is not possible)  If you dont have it in URL there are free converters who can host your file. Example: https://imgur.com

  2. Go to Emails > Email Template> icon with insert a image

3. Paste your image URL in the first field > OK.
4. Adjust the size with 3rd field "Dimensions" if needed.

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