September 20, 2021: Email verification has been enabled on the server.
You must join the server using a Discord account with a verified email address. We cannot see your email address, this is held privately by Discord and is completely unavailable to us, so you do not need to be concerned about your privacy.
IF for some reason you joined the channel before this was enabled, AND you do NOT have a verified address, you will need to verify your address with Discord. You cannot post until that is done. We do not control this process, read their docs. If your verification email was set incorrectly when you set up your account, and you cannot retrieve the confirmation the email, your only option is to create a new Discord account with a verifiable email address and rejoin the server.
DO NOT DM admins if you have a problem with the process; there is literally nothing at all that we can do about it. Your verified email is between you and Discord.
https://support.discord.com/hc/en-us/articles/213219267-Resending-Verification-Email