Bash script (Email address verifier) - It outputs some flags that make you sure if any given email address is valid, exists, and can receive emails.

1- Grab an access key from here : https://mailboxlayer.com/product
2- Copy & paste the access key to the variable ACCESS_KEY in the script file eav.sh [Line 4]
3- Run the command(that accept only the email address as an argument) : sh eav.sh [email protected]

4- you will get Results like the following (incase of valid and operitional email address):