How do I retrieve bitcoins sent to my email address through coinbase.com? I have sent bitcoins from coinbase to my email address but there on my email I just see an email that I have received BTC from Coinbase. How do I retrieve those bitcoins from my email to transfer them over to another wallet?
When sending Bitcoin from Coinbase.com to an email address, you are sending the Bitcoin to another Coinbase.com account linked to that email address. So for example, if you had a friend who has a Coinbase.com account and you wanted to send them Bitcoin, you could ask them for their Coinbase.com email address and then send the Bitcoin to that email address, where they would claim it on Coinbase.com. Reference

If you simply want to move Bitcoin outside of Coinbase.com to a Bitcoin wallet, you will need to send the Bitcoin to your public address.