Currently Being ModeratedJan 22, 2013 10:43 AM (in response to TinaO3)
If you are Syncing the iPod with the same Library as before, simply Restore the iPod. The Restore command is on the iPod/Summary pane which you can access when the iPod is connected to the iTunes Library. A Restore will remove everything form the iPod.
If you are Syncing the iPod with a different Library, when you plug it in to the iTunes, you should see a message telling you that all the content on the iPod will be removed and the content from the iTunes Library will be put on it instead.
That's all there is to it. You should not need any email ID or "confirmation", beyond confirming that you want to delete the current content.