Duplicate URLs Issues

[anne10]

For my product url, I have added

utm_source=Email&utm_medium=Email&utm_campaign=Ema il

to the original url.

Now, will it be taken as a duplicate to the original url.

[phranque]

for google, at least, you can use the GWT Parameter Handling:
http://googlewebmastercentral.blogspot.com/2010/10/webmaster-tools-updates-to-search.html [googlewebmastercentral.blogspot.com]