# fetchByTransactionHash

Fetch a mail using its associated transaction hash.

### Usage

```ts
const txHash = '0x...';
const receivedEnvelope = await mail.fetchByTransactionHash(txHash);
```

### Returns

`Promise<ReceivedEnvelope>`

A promise that resolves to the received mail Envelope associated with the specified transaction hash.

### Parameters

#### transactionHash

* **Type** `TransactionHash`

The transaction hash used to filter the associated mail.