OK basically I want to make a program where I type in something like [email protected] and it will output all the possibilities of a Gmail name because you can add dots anywhere and itll still work. For example:

[email protected]
[email protected]
[email protected]
[email protected]
[email protected]

Basically the dots can be in anyway except touching the "@" sign. I know how to make a loop and put the dot behind each letter but I am not sure on how to go about getting the other possibilities. Any suggestions?