Module handler 

SES handler implementation bridging HTTP to business logic.

Parses form-urlencoded request bodies, dispatches to the provider, and serializes XML responses following the awsQuery protocol.

Covers Phase 0-3: identity management, email sending, templates, configuration sets, event destinations, receipt rules, identity notification/DKIM/mail-from configuration, and sending authorization.

Structs

RustackSesHandler

Handler that bridges the HTTP layer to the SES provider.