Description:

Our backend service cannot resolve DNS for external email APIs:

- api.sendgrid.com - DNS lookup times out

- api.resend.com - DNS lookup times out

Error: Failed to resolve 'api.resend.com' ([Errno -3] Lookup timed out)

Details: - Project: [Your project name]

- Service: Backend (api.aidextechlabs.com)

- Tried multiple regions - same issue

- Other outbound connections work fine (health checks pass)