Email Marketing In 2021

MailChimp is the number one market leader in email marketing. They have been around forever and tens of thousands of small business owners use them year round. The team at MailChimp has been pretty successful in advising numerous brands across the world regarding the cheapest and best forms of marketing.
Aside from their very successful ESP, they are also running a blog. They believe that providing marketers with both the right tools and the right knowledge leads directly to marketing success.
They post regularly, so you can find out a lot in a short time period. A specialty of theirs is tips and advice on using tools and automating your emails marketing sector.