File Content Extraction 26.3
Filter SDK C++ Programming Guide

# mail_metadata

Returns the mail metadata for this subfile.

DEPRECATED: The `mail_metadata` function is deprecated in File Content Extraction 23.2.0 and later. OpenText recommends that you access metadata by calling the function metadata instead.

This function is still available for existing implementations, but it might be incompatible with new functionality and might be removed in future.

## Syntax

    std::multimap<std::string, std::string> Subfile::mail_metadata() const

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Version 26.3 | Last updated July 2026

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Product: File Content Extraction 26.3

Topic Title: mail_metadata