---
title: invalidHeaders
framework: mailkit
role: symbol
role_heading: Type Property
path: mailkit/mecomposesessionerror/invalidheaders
---

# invalidHeaders

An error that indicates one or more of the message’s headers are invalid.

## Declaration

```swift
static var invalidHeaders: MEComposeSessionError.Code { get }
```

## See Also

### Indicating Erroneous States

- [invalidBody](mailkit/mecomposesessionerror/invalidbody.md)
- [invalidRecipients](mailkit/mecomposesessionerror/invalidrecipients.md)
- [MEComposeSessionErrorDomain](mailkit/mecomposesessionerrordomain.md)