Email Marketing Market Size and Forecasts (2021 - 2031), Global and Regional Share, Trends, and Growth Opportunity Analysis Report Coverage: by Component (Software, Services); Enterprise Size (Small and Medium-Size Enterprises, Large Enterprises); End-user (BFSI, IT and Telecom, Retail and E-Commerce, Travel and Hospitality, Others) , and Geography (North America, Europe, Asia Pacific, and South and Central America)