Do research on the market. You 're almost right on your business. Figure out what the "standard" issues are and use them as a reference in your industry (stock market investment). From there, do some work to consider why other rivals in your market do this. They would be more effective than you because they have done their market research.
You need to know what's standard of digital marketing company do for your business and you don't hear Reddit users who hate daily email clearly. I personally appreciate the 1-2 e-mails I get from real people who add value to their e-mails (daily). And I open and click often because I know that they have the best intentions (not selling me anything constantly, but sharing info).