How to make a mailing list with a bot in Discord?

Question

Python

I wanted to make a mailing list so that every 3 hours a message would be sent to the text channel on the discord server, but I don’t know how to do it. And I also don’t know how to write to which channel to send messages :(

I write on discord.py

if you answer I will be very grateful.

Answer 1

sending a message to a specific channel ,
sending a message at a specific time