Not necessarily. Isn't that what services like Sendgrid have popped for? I'm actually I'm the same boat as you with needing an app to send various notification

Not necessarily. Isn't that what services like Sendgrid have popped for? I'm actually I'm the same boat as you with needing an app to send various notification emails which is why I'm reading this thread so I'm about to check out some 3rd party options now. I don't know about you but I always assume I'll have little to no users so I got a 512 Linode figuring I'd spare such a small server from doing so much work and buying a bigger slice when and if necessary. Besides the complexity of setting up an email server so your messages can be reliably received I'd go with a 3rd party to save the server from the load.