An email server used by only one sender. A dedicated server often costs more to use because the expense can’t be spread among many users, but it performs better than a shared server. Email usually goes out faster, the server is more secure, and you eliminate the possibility that another sender could get the server blacklisted for spamming.
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Advertise Do not Spam
There is a fine line between advertising and spam and unfortunately many business owners do not understand the difference between the two.