Hotmail (and other email clients) converting a & to url encoded %26

Hotmail (and other email clients) are converting a & to url encoded %26. This is a problem as I have a couple of variables in my url and once this is emailed to a hotmail account or others this issue happends.

Question:

Is there any way that I can get zoho (in a stateless form) to recognize the %26 as an & sign? That way I can URLencode and fixe the issue?