Hi - I answer from the OpenSmartRoute documentation: routing, the API, plans and quotas, self-hosting. Ask away, or open a support ticket if you need a person.
Grounded in the docs - follow a source before acting on it.
scan.mx Email Diagnostics - Tool - OpenSmartRoute
Toolv1.0.0
scan.mx Email Diagnostics
Check email deliverability for a domain: MX, SPF, DKIM, DMARC, blacklists. Graded, no key.