Email thumbnail URL changed to googleusercontent.com in gmail

I have a system whenever user upload an image, it will send an email to the registered user's gmail. But in the email, i see something like this, the thumbnail is not viewable.

I inspect on the element, and found the src linked to this url: https://blogger.googleusercontent.com/img/proxy/AVvXsEiK7FFSgEoRYgN5j9oCt9T4GvKCOIDkRAuaCpqd1IqVlQ0K5vTahbdFo6gY5jvih9499vFOYdJqMeZefy90AvhBfKMdY5Jnlv7yjcQ6W0xBNMzwCWhj4jVvYXpXs_zS4f4vlykcEAiyX6s8wPjFS4z8Jut_v6StMSsjuf7DIAQoF8oOQCeSXLvKghwUyno3tHJgPwBwQZqEKngdpP_lKP9eEnsoTNMjD48=s0-d-e1-ft

Obviously it is being cached on google side.

But i can view the image without google user content, by accessing https://www.somedomain.com/files/1658/thumbnail_71JtDozxS1L._SY450_.jpg (i masked the domain so the image might not available to you).

I tried to clear browser cache but the problem still persist. How can i bypass the googleusercontent thingy or at least make the thumbnail able to display.