US Email Marketing Benchmarks (2020): By Day and Industry

Campaign Monitor writes:

"We analyzed billions of emails sent in the United States between January and December 2019. These campaigns were sent to subscribers around the world from United States businesses and nonprofits using Campaign Monitor."

Read more below:

https://www.campaignmonitor.com/resources/guides/us-email-marketing-benchmarks-2020-by-day-and-industry/