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.
inbox-preview - Tool - OpenSmartRoute
Toolv0.1.0
inbox-preview
Render HTML/.eml emails in real Gmail, Outlook & Yahoo web clients and screenshot them