Why the big companies have the Newsletter option ?
                                                    I subscribed to the some big companies newsletter yesterday like accenture,etc. I receive mails, but I could not understand why they have it? Also I could not learn much from that mail about the company what they are really doing?.
so what is the basic idea of having that option? is it a marketing strategy?
                    
                    so what is the basic idea of having that option? is it a marketing strategy?
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