---
title: responseSecondaryRecipientIdentifiers
framework: uikit
role: symbol
role_heading: Instance Property
path: uikit/uimailconversationcontext/mailentry/responsesecondaryrecipientidentifiers
---

# responseSecondaryRecipientIdentifiers

A set of strings that identifies the secondary recipients of the message, such as those in CC or BCC messages.

## Declaration

```swift
var responseSecondaryRecipientIdentifiers: Set<String> { get set }
```