You could always just try logging into the blockchain.info wallet via the website... It seems like you have the WalletID in that email, you'd just need the password that you used when you originally set up the wallet back in 2014.
If that walletID isn't valid, use the "having some trouble? View options" link on the login screen and input the email address you used to register with blockchain.info to get the walletID emailed to you.
You can also try the blockchain.info wallet import utility:
https://blockchain.info/wallet/import-walletAgain, you'll need the password used to encrypt it... ie. The wallet password you used back in 2014.