I disagree with the premise of the article: “Every SaaS company must start their onboarding sequences with a welcome message that is sent when a user joins the platform. This is a must by now, since everyone who signs up will expect some sort of confirmation of their transaction.” These emails invariably waste my time. They repeat what the website already told me when I signed up. If I sign up for your SaaS, I expect…
I will not read it, just mark it read and archive. It is not the contents that are important, what is important is that your email is set correctly, and receiving the service's emails without problems. So, any future issue can be solved over email.