> ## Documentation Index
> Fetch the complete documentation index at: https://docs.smokeball.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Correspondence

[**@smokeballdev/smokeball-client-sdk**](./../../../../README)

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# Interface: LetterRecipient

Letter recipient.

## Properties

### entityId?

> `optional` **entityId**: `string`

Entity Id.