Lol, this post is going to be removed too, as ask lemmy is not a support community (as stated in the sidebar).

Anyway, just like reddit and subreddits, every lemmy community has a sidebar that usually describes what it's about and the rules. It's just to the right if you're browsing on desktop. If you're in an app, it'll vary, but usually if you open the community most apps have a three dot menu with an option to view the sidebar.

I'm not sure which instance this is (since you didn't include it in the email), but generally in all communities the rules can be found in the sidebar, like Reddit.

I use voyager on mobile, so I can just open the community, tap the menu button, than tap "sidebar" to read the sidebar. It may be a different process on other platforms, but the sidebar should still be there.

Support question (Rule 5). Locking.