Unable to send mail via Mailgun over api or smtp

Question

I have setup a new account and not verified my domain. I would like to test and confirm mail-send before proceeding with verification and adding payment information.

Answer 1

Faced the same issue while sending emails via api by php curl. I solved it by changing API Base URL https://api.mailgun.net/v3/YOUR_DOMAIN_NAME to https://api.mailgun.net/v3/YOUR_DOMAIN_NAME/messages. It's because their api is not only for sending. Hope this helps.