When you run your own email server, you run a significant risk of getting to spam folders, especially at the beginning if one of your first customers marks your

When you run your own email server, you run a significant risk of getting to spam folders, especially at the beginning if one of your first customers marks your email as spam. You also have to deal with abuse complaints and discovering where the form is for whichever provider is blocking your email addresses while also dealing with a customer who never got an email from you with their receipt or invoice. It’s a pita. Did it once, never again.