<div class="meta" robots="noindex">

</div>

Method

# InternetHeaders.AppendHeader

---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

<div class="warning">

<div class="title">

Warning

</div>

This item was deprecated in version 2019r2. Please use `InternetHeaders.AddHeader<internetheaders.addheader>` as a replacement.

</div>

## Description

Appends a new header.

## Sample code

``` xojo
' populate a email message
Dim mail As New EmailMessage
mail.FromAddress = FromAddressField.Text
mail.Subject = SubjectField.Text
mail.BodyPlainText = BodyField.Text
mail.BodyHTML = HtmlField.Text
mail.Headers.AppendHeader("X-Mailer","Example SMTP Demo")
```

## Compatibility

All project types on all supported operating systems.