Add %0D%0A
to any place you want to encode a line break on the URL.
%0D
is a carriage return character%0A
is a line break character
This is the new line sequence on windows machines, though not the same on linux and macs, should work in both.
If you want a linebreak in actual javascript, use the \n
escape sequence.
onClick="parent.location='mailto:[email protected]?subject=Thanks for writing to me &body=I will get back to you soon.%0D%0AThanks and Regards%0D%0ASaurav Kumar'