Quick Tutorial - Email OSINT

Open Source Intelligence (OSINT) is not a unknown term for most of the people who have a interest in technology. It denotes the methodology to identify information of the target available in public domain. The main difference here is the collection of information is purely legal as you gather information via information available in public domain. Click Here If you are interested in learning Top 12 Open-Source Tools used to do OSINT.

Email OSINT is a method of collecting emails of target company or individual that are available in public domain. This blog discuss methods and tools to collect email ids of target company or individual.

(1) Google

Ultimate tool to identify every information of target company or individual. Just use different search operators to identify more accurate and reliable information. Click Here to Learn 15 Google Search Tips & Tricks for Best Results.

(2) Hunter.io

Nice web based application that provides list of email ids just by giving company name. This tool is not free and you need to pay some bucks to use it.

Link: https://hunter.io

(3) theHarvester

Pre-installed tool on Kali Linux. This tool gives email addresses in addition of other information from public domain. Just shoot below command to search emails:

theHarvester -d gmail.com -b all

(4) Emailrep.io

This web based tool just give reputation of email. Also provide source details and reasoning for the results.

Link: emailrep.io

(5) Phonebook.cz

This is totally free tool to identify email addresses of a particular company. It will provide list of email addresses belongs to company.

Link: https://phonebook.cz

(6) emailHippo

This simple tool is used to provide accuracy of email id whether it is working or not. This tool also provide information related to different details such as mailbox existence, domain etc.

Link: https://tools.emailhippo.com/

(7) Email Checker

This is another tool to check correctness of email and to check whether email is valid or not.

Link: https://email-checker.net/

(8) By using other search engines

Must use other search engines such as Bing, Yahoo etc. to extract more information related to target. You never know what new info and emails you got it.


This blog lists out different OSINT tools and methods to search emails of target company or individual. Some of the tools listed above are completely free and you can easily find information just by using different search engines that have you used in your daily life.

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If you have any questions, feel free to ask in the comments section below. Nothing gives me greater joy than helping my readers!

Disclaimer: This tutorial is for educational purpose only. Individual is solely responsible for any illegal act.

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