# Postal Mime v2.7.4

- Product: Postal Mime (https://whatsnew.fyi/product/postal-mime)
- Vendor: Postal Systems
- Date: 2026-03-17
- Version: v2.7.4
- Original notes: https://github.com/postalsys/postal-mime/releases/tag/v2.7.4
- Permalink: https://whatsnew.fyi/product/postal-mime/releases/v2.7.4

What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog.

Reuse: the summaries, labels and curation here are © What's New. Quote freely with attribution and a link back; wholesale republication of the corpus is not permitted — terms: https://whatsnew.fyi/terms. The vendors' own release notes remain their publishers'.

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- **fixed** — Add missing originalKey to Header type and Uint8Array to Attachment content
- **fixed** — Include originalKey in parsed headers output
- **fixed** — Preserve __esModule and .default in CJS build for bundler interop
- **security** — Prevent RFC 2047 encoded-word address fabrication

##### [2.7.4](https://github.com/postalsys/postal-mime/compare/v2.7.3...v2.7.4) (2026-03-17)


###### Bug Fixes

* add missing originalKey to Header type and Uint8Array to Attachment content ([92cc91c](https://github.com/postalsys/postal-mime/commit/92cc91c1c8477e0462cb0e93ddf8ea6aec6534d0))
* include originalKey in parsed headers output ([83521c8](https://github.com/postalsys/postal-mime/commit/83521c87f62e5e095ae09913c70798f20e2ab347))
* preserve __esModule and .default in CJS build for bundler interop ([1466910](https://github.com/postalsys/postal-mime/commit/1466910e31608b9e5307724ecc6a0a3a70556048))
* prevent RFC 2047 encoded-word address fabrication ([844f920](https://github.com/postalsys/postal-mime/commit/844f92023d49d819ef13b9ad5c50b7c346eb02d3))