---
title: maximumMessageSize
framework: TelephonyMessagingKit
role: symbol
role_heading: Instance Property
platforms: [iOS 26.0+]
path: telephonymessagingkit/mmsservice/configuration/maximummessagesize
---

# maximumMessageSize

The maximum MMS size for a sent text message.

## Declaration

```swift
var maximumMessageSize: Measurement<UnitInformationStorage>?
```