Find a person's real email address from public non-GitHub sources — research paper PDFs (arXiv), biomedical affiliation fields (Europe PMC/PubMed), package-registry maintainer metadata (npm/PyPI), PGP keyservers, mailing-list headers, personal-site mailto's, and name+domain pattern guessing. Use when building outreach lists and a contact's email is unknown. Sibling to github-email; reach for it when the target is a researcher (papers), an OSS/package author (npm/PyPI/lore), or when you only have a name + company domain. Input is a name, arxiv id, package, url, or handle; output is candidate emails.
