@Meyerweb Looking at the negative replies I wonder what the big issue is. You shouldn’t be careless while originally setting up a mail server, but once properly configured, receiving and sending email just works. Now if you want to do things that look a lot like spamming, that’s a different question, but for personal or regular business use? No problem at all. I don’t have an opinion on running a Mastodon instance as I don’t do that.