# Variable: KNOCK\_TTL\_SECONDS

```ts
const KNOCK_TTL_SECONDS: number;
```

Defined in: [packages/core/src/inbox/inbox.ts:59](https://github.com/leifriksheim/minca/blob/main/core/src/inbox/inbox.ts#L59)

How long a knock waits in a mailbox, and so how old one may be when opened