How email marketing can benefit your business?

Hello, folks. Just started this thread to know your opinion about email marketing in 2020. Does it is still effective than 10 years ago?
What are the ROI of email channel for eCommerce? And what tips would you share to launch email campaigns the right way?

From my side, I would like to share a few useful articles of eSputnik. eSputnik is an omnichannel marketing automation platform that allows to launch bulk campaigns via email, SMS, web push, Viber etc.
It is a great alternative to MailChimp. In eSputnik blog you will surely find a lot of great tips about modern email marketing strategies and best practices:

I just recently started my own affiliate business, everything is running smoothly, although I feel like my Email marketing strategy is not enough. I’ve been hearing about the perks of email marketing for affiliate businesses, but I’m not sure how will this help my business in this modern world where social media is the best way to reach the target market. Well, thank you for this tip, I’ll make sure to personalize my email, so my company will stand out against my competitors.