Rumors about the death of email have become an annual tradition: if you open any TOP MARKETING TRENDS 20XX article, there's a 99,9% probability that you'll see something like "give up on email marketing, nobody needs it anymore" which is not exactly true.
According to Hubspot, every email generates $42 while costing $1; in other words, the ROI of this channel is 4200%. Not bad for a deadman, is it?