I plan to use email as a marketing tool, to create advertising campaigns and simply as a way to communicate with clients. What do I need for this?
I heard that there are now e-mail service providers. Maybe it makes sense to consult with specialists who deal with similar issues?
If you have no idea at all about how to promote your business using email and what you need for this, find out more about email service providers, and also read about smtp secure ports (https://unione.io/en/blog/smtp-ports). Nowadays there are different apps and systems for sending emails, and there are a lot of opportunities that are worth using for business promotion.