Marketing email campaigns
I'm thinking about business promotion, and many people tell me about e-mail as an effective marketing tool. To be honest, I didn't even consider email from this point of view.

Why not? It seems to me that e-mail is still a convenient and at the same time accessible tool. Easy to set up and use for business purposes.

It's easy to set up, since there are different e-mail service providers. If your company is quite large, you definitely shouldn’t use the services of your Internet provider, as the speed will be low and there is a possibility that all emails will end up in spam. I recommend first learning more about what smtp servers and providers are available, and trying out free plans, which also give you the opportunity to evaluate convenience and efficiency.