Salesforce Marketing Cloud is a modular cloud solution. That is not like the other cloud products of Salesforce. It is not built on the core Salesforce platform, rather it is in the modular format, these modules connect core Salesforce org and the Salesforce Marketing Account. This makes it very powerful.
Now the question arises what is the use of Salesforce Marketing Cloud, The use of the Salesforce Marketing Cloud is to communicate to the prospective customer through all possible channels be it -