---
title: MEMessageSecurityErrorDomain
framework: mailkit
role: symbol
role_heading: Global Variable
path: mailkit/memessagesecurityerrordomain
---

# MEMessageSecurityErrorDomain

## Declaration

```swift
let MEMessageSecurityErrorDomain: String
```

## See Also

### Constants

- [MEComposeSessionErrorDomain](mailkit/mecomposesessionerrordomain.md)