# `Mailglass.Tenancy.SingleTenant`
[🔗](https://github.com/szTheory/mailglass/blob/v0.1.0/lib/mailglass/tenancy/single_tenant.ex#L1)

Default `Mailglass.Tenancy` resolver: `scope/2` is a no-op;
`resolve_webhook_tenant/1` returns `{:ok, "default"}`.

Single-tenant adopters need zero configuration — this is the
`Mailglass.Config`-resolved default when `:tenancy` is `nil`.
`Mailglass.Tenancy.current/0` returns the literal string `"default"`
when this resolver is active and no explicit `put_current/1` has
run, and webhook ingest (Phase 4) stamps the same `"default"` value
on every verified request.

Adopters who want real tenant isolation implement their own module
with `@behaviour Mailglass.Tenancy` and wire it via:

    config :mailglass, tenancy: MyApp.Tenancy

Multi-tenant adopters override `resolve_webhook_tenant/1` to map
verified webhook contexts (headers / path_params / conn / raw_body)
to tenant_ids. See the `Mailglass.Tenancy` moduledoc for the
callback's 6-key context map shape and examples.

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*Consult [api-reference.md](api-reference.md) for complete listing*