Receive notifications directly to your email address when a transaction occurs in a wallet.  Whenever the wallet does any transaction or account related transaction, you will get mail in your email within some time.

 First, we need to create an Etherscan account.  Create an account on etherscan.io.

 

 Here is an account overview.  Before setting everything up, you can see email notification limits up to 200 per day, and wallet watchlists up to 50.  Because of this rule, you cannot follow up on large smart contracts.  But strategies for smaller accounts can be followed.

 Go to watchlist;  Here, basically, you can add your address.  Just click the Add button.  A pop up will appear

 

 Now you can enter your selected wallet and add an optional description.  You can select your desired option to receive notifications.  You can select both incoming and outgoing transactions or only incoming or outgoing notifications.  You can also select ERC20 token to get other information.

 This can help you if your wallet gets hacked and you can get notifications whenever the hacker makes a transaction later.  Or you can follow someone else's investment strategy to build a better portfolio.