>Hi
>
>I'm being passed some data encrypted with MD5.
>
>I can find examples of how I encrypt in TSql
>
>SELECT CONVERT(NVARCHAR(32),HashBytes('MD5', 'email@dot.com'),2)
>
>but I can't find an example of how I would de encrypt the result to get the original content.

You can't - it's just a hash value....