I was heavily misquoting a scene from Ted 2 from memory 🙃
I know this is late, but I believe this will work https://lemmy.world/c/[email protected]
Basically you swap the URL around instead of kbin.social/m/baking, you change it to [email protected] and append to https://lemmy.world/c/
Why the heck would anyone be sending sensitive information from a personal account? I guess vendors sending docs to .mil addresses? I think we need more details. Humans are going to human, no technological answer can stop a human typo-ing a tld. Reminds me of this cartoon