
NodemailerApp
The ultimate email debugging desktop app
NodemailerApp launched on November 24, 2019 with 4 votes, #1,325 of 3,203 launches that month. The site was not reachable when checked in September 2026.
What it does
Import emails from EML files, EMLX files, large MBOX files from Gmail takeout, Maildir folders and Postfix queues. Ever wanted to view HTML source of a nicely designed email instead of some garbled rfc822 format? Just open the HTML tab of an email to see it.
Does a similar job
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Save Email Template2020 · chromewebstore.google.com · ▲122Save emails as full-length screenshots or PDFs for free

Mboxreader – easily view your Gmail TakeoutsJul 2026 · mboxreader.com · ▲7Hey HN, Did you know you can download all your emails (and attachments) from GMail into a .mbox format using Google Takeout (https://takeout.google.com)? I did this and for the longest time my .mbox backup just sat around. I built a web app that can take an .mbox file and load it into a UI that looks like GMail: threaded conversations, original labels and categories, contacts, attachments, and full-text search. The mail never leaves your machine: the upload and parsing happens in a Web Worker in your own browser, and the archive is stored in browser storage on your device. Close…

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Source: Product Hunt launch ↗