To track the openings of an email, does marketing cloud do it for me automatically or do I have to insert the snippet with for each email every time?
" The tracking feature uses a 1×1 pixel transparent GIF image to track information. The pixel is automatically inserted into every email unless you're using an HTML-Paste template "
If i create email without HTML paste template, i can not put <custom name= "opencounter" type= tracking">?
Best Answer
All of the default templates for HTML email that SF has automatically have the open pixel inside of them. If you use your custom built templates or html-paste email, giving yourself full control on the code, you will need to insert this manually.
Also as a note, this pixel will not appear in your text version or text only emails at all, since there can be no images in a text only email.
To answer your ask of why they might use it inside the templates - it could be: