File Content Extraction 26.1
Filter SDK C++ Programming Guide

# mail_header

Whether to include the mail header fields ("From", "To", and so on) when extracting a mail message body (subfile) from its container.

For more information about this feature, see Mail Metadata.

Default value: `true`

## Syntax

    Configuration& Configuration::mail_header(bool output_mail_header)

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Version 26.1 | Last updated January 2026

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Product: File Content Extraction 26.1

Topic Title: mail_header