Hi! I want to make sure that users know about a certain rule before posting in a certain category. Can I show a message to users before or after posting in this category and/or send an automated message via Dicobot or Email?

So you want those creating topics in that category to have some guidance? Have you seen What are Topic Templates?

إرسال رسالة عند النشر

isaac (Isaac Janzen) 19 سبتمبر 2022، 4:39م 2

You could display a banner for a given category

الموضوع		الردود	مرات العرض
Show customisable message on private topics/categories? Support	5	1150	16 سبتمبر 2021
Display banner topic only to logged in users? Support	3	1303	17 أبريل 2019
Post or Topic Visibility Support	6	521	8 نوفمبر 2023
Showing two banners: one to anonymous users, and one for logged-in members Support	5	1326	4 مايو 2019
"This topic is only visible to those who can see the {x} category" message UX	3	598	16 يوليو 2020