> All the email settings are exactly as suggested.
> Contact Anon is selected on Features.
> Admin is the Contact User.
> The email address for Admin is correct in User Preferences.
> Sender Email matches a legitimate email address set up for my domain.
> Still doesn't work. I tried a few different email addresses. I might have to ditch TikiWiki for the time being.
The message by default doesnt get sent to an external email, it gets sent to "admins" internal Tiki messaging inbox.
Login as admin, open their MyTiki menu and choose the messages option.