How to config nopCommerce mail Setting

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C#

mail

I use nopCommerce 1.50 for my online Shop.
But i can't config my mail setting in it.

i use this type of settings

'Store Admin Email: myGmailEmailAddress@gmail.com
Store Admin Email Display Name: mySTORENAME OR Any name you want
Host: smtp.gmail.com
Port: 587
User: myGmailEmailAddress@gmail.com
Password: PasswordOfmyGmailAccount
Enable SSL: Yes [Check Mark]
Use default credentials: DO NO CHECK , LEAVE IT UN-CHECKED'

and also add this code in web.config

<mailSettings>
    <smtp deliveryMethod="Network"
                from="BookMyAds.com@gmail.com">
        <network defaultCredentials="false" host="smtp.gmail.com" port="587"
                    userName="BookMyAds.com@gmail.com"  password="******" />
    </smtp>        
</mailSettings>

But it not work for me..
any help please.