Guys, It was very difficult to figure how we can break the line text email.
I have found a very simple solution just "break the line in your code" and it will do the same in the email as well.
eg: I have done this in PHP
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message ="Hello World
Now this is my next line message";
Message .= "Dear".$var.",
again this next lien message"
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Thats it and it works fine with me..
Cheers,
Azim