Email is Universal
Almost everyone uses email. Currently, there are around 240 million email users in the US. This is projected to increase to more than 250 million by 2020. These numbers are important since according to a survey, sending or reading email is the number one online activities of adult internet users. This accounts for 85% of respondents. Another survey indicates that 78% of teenagers use email as a part of their daily lives. Overall, 99% of email users in the US check their email up to 20 times a day.