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# INMessageAttribute

Constants that indicate an attribute of a message.

```
enum INMessageAttribute
```

## Topics

### Constants

[`INMessageAttributeUnknown`](/documentation/Intents/INMessageAttribute/unknown)

No known attribute.

[`INMessageAttributeRead`](/documentation/Intents/INMessageAttribute/read)

The message is marked as read.

[`INMessageAttributeUnread`](/documentation/Intents/INMessageAttribute/unread)

The message is marked as unread.

[`INMessageAttributeFlagged`](/documentation/Intents/INMessageAttribute/flagged)

The message has been flagged.

[`INMessageAttributeUnflagged`](/documentation/Intents/INMessageAttribute/unflagged)

The message has not been flagged.

[`INMessageAttributePlayed`](/documentation/Intents/INMessageAttribute/played)

The message has been played.

## Relationships

### Conforms To

[`BitwiseCopyable`](/documentation/Swift/BitwiseCopyable)

[`Sendable`](/documentation/Swift/Sendable)

[`Equatable`](/documentation/Swift/Equatable)

[`Hashable`](/documentation/Swift/Hashable)

[`SendableMetatype`](/documentation/Swift/SendableMetatype)

[`RawRepresentable`](/documentation/Swift/RawRepresentable)

---

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