Get rid of unique check on Customer Email

Is there a need to have a unique email into the edit function of a customer ? 

I'd like to set up a generic email and note use the tool to send email to the customer. But I can't set up the same email address for several customers...

<p>Is there a need to have a unique email into the edit function of a customer ? </p><br /> <p>I'd like to set up a generic email and note use the tool to send email to the customer. But I can't set up the same email address for several customers...</p>

I'm sorry but that's not possible. Instead, you can leave it empty.

<p>I'm sorry but that's not possible. Instead, you can leave it empty.</p>