what do you use to send email notifications simply and for free?

Freelance Software Engineer, India + Remote

You can use Sendgrid with GitHub Education pack. 15k free emails per month.

🇦🇹 Freelancer :: ✉️ [email protected] :: 🌐

Personally I use Mailgun. They have free tier offering 10k emails per month and integrate with nearly everything :)

Bot Stash, Producthuntian

sparkpost. 15K free email monthly. 750 daily limit