SendGrid, Mailgun, and AWS SES all let you send emails via SMTP, but they differ in ease and features:
AWS SES: It is cheap and powerful but needs more setup and technical know-how (like verifying domains, setting up IAM, etc). It’s great if you want control and low cost.
SendGrid & Mailgun: They are easier to use out of the box with user-friendly dashboards, analytics, templates, and APIs. They handle most setup for you and offer extra features like email tracking, spam testing, and deliverability tools.
AWS SES is cheaper, more technical!
SendGrid/Mailgun are easier, more features, a bit pricier!
I think for beginners, SendGrid or Mailgun can save time and headaches.