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Dev tools · July 30, 2019

EmailRep, free API to query email reputation and report bad senders

In the world of phishing defense, email reputation is an incredibly valuable, but often overlooked, piece of intelligence. While building Sublime [https://sublimesecurity.com], a detection and response platform for email security, we've encountered two principal phishing defense applications. First,

EmailRep, free API to query email reputation and report bad senders launched on July 30, 2019 with 8 votes, #926 of 3,007 launches that month and more than 75% of that year's launches. The site was still online in September 2026, 7 years on.

What it does

In the world of phishing defense, email reputation is an incredibly valuable, but often overlooked, piece of intelligence. While building Sublime [https://sublimesecurity.com], a detection and response platform for email security, we've encountered two principal phishing defense applications. First, for identifying email addresses created by threat actors to

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