I have a question for Amazon SES users. Do you need to submit the "Request a Sending Limit Increase" form to send emails to domains you don't own? Can it still

I have a question for Amazon SES users. Do you need to submit the "Request a Sending Limit Increase" form to send emails to domains you don't own? Can it still be free? I just want to send 3-4 emails a day from my vps and my home router.