Stop account's activities for 24 hours How can I temporarily ban an email address for up to one month?

I am using Drupal 6.
There is the Troll module, which seems to do what you need; it isn't looked after.
For other options you also have the Cave your trolls module, which hides user's posts from anyone other than themselves, or the Misery module, which makes the site unusable for certain users.