feat: Custom Domains

[kodermax]

Feature Description

Implement a custom domains feature that allows clients to connect their own domains for use in the document signing service. This will provide the following advantages:

Branding and Recognition. Using their own domain will allow clients to maintain their corporate branding and brand recognition when interacting with counterparties and signing documents.

Increased Trust. Receiving documents from a client's own domain will instill more trust in counterparties than receiving documents from third-party service domains.

Streamlined Processes. Clients will be able to use their familiar email addresses from their own domain when exchanging documents, simplifying their internal processes.

Additional Security. Using the client's own domain will add an additional layer of authentication and security when exchanging confidential documents.

Competitive Advantage. The ability to use their own domain will be a valuable advantage compared to other electronic document management services.

The implementation requirements should include easy setup of custom domains, integration with existing document signing processes, and high security standards when working with client domains.

Use Case

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Proposed Solution

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Alternatives (optional)

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Additional Context

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