Sendgrid alternatives 🧐

Hey all, happy to be here!

I got a quick question I'm hoping you guys can help me out with.

Has anyone here encountered a SendGrid/Mailgun alternative that lets you send cold emails?

I need a backend SMTP server which allows you to send cold emails so I can use it in my business.

(I'm aware of things like Woodpecker, but I need the SMTP, not the SaaS product).

Thanks and good luck!