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Email Crawler – Email Address Crawler and Extractor – Atomic …
Atomic Email Hunter is an email crawler that crawls websites for email addresses and user names in a convenient and automatic way. Gathered emails are stored in a separate file, so you get a list of target email addresses.
With our email crawling software email addresses are found in a fully automated mode — just specify necessary keywords or URLs and start searching. The video below shows Atomic Email Hunter at work.
How Email Crawling Software Works
Atomic Email Hunter navigates websites a simple search engine, scans them for any contact information and extracts email addresses and user names if any. The search query is submitted as a keyword or valid URL (entered in the search bar), and one of 42 available search engines is chosen for scanning websites.
Main Features of Email Address Crawler
As our program performs fast and relevant email extraction, there is a large number of specific features to make your search faster and more targeted:
Get emails from one or several websites based on keyphrase (a lot of email crawling tools don’t support this search type) and ignore hidden emails.
Select necessary search results according to the filter rules or skip poor domains.
Specify depth level and paths limits.
Set up working in multi-threaded mode and proxy support for faster email search.
An email address crawler is a simple tool that requires Internet connection and very few computer resources. In addition, it can search for emails in background mode, so when you launch the program, your email search starts and you don’t have to worry about anything until it’s finished.
Unlike other email crawlers, Atomic Email Hunter does not require the installation of any additional software. Please note that email crawling software must support proxy servers for better search results and fast web-surfing. Atomic Email Hunter fully supports working with proxies and can automatically detect a better one. With a proxy-compatible crawler email search is much more safe and you have a better chance to get as many emails as you need without being banned by websites.
No Email address crawler guarantees that gathered emails are valid. We recommend verifying the list of addresses you have collected to make ensure in email validity. If you need bulk email software keep in mind Atomic
Mail Sender in mind, or have a look at Atomic
Email Studio – a full studio of email marketing software containing 9 programs in 1 interface.
Save 30% with a package including 6 email scrapers
To generate a great list of extracted email addresses and save 30%, go to the Discounts & Special offers menu and order the “Massreach Package” including the following 6 scrapers:
Email Hunter searches for email addresses through the Internet;
Email Logger extracts email addresses from your computer;
WhoIs Explorer searches through the WHOIS database and finds personal data of Internet domain owners;
Newsgroup Explorer scans newsgroups and extracts emails along with user names;
CD Email Extractor scrapes for emails on any CDs and DVDs;
Web Spider browses each site you visit, including password-protected websites, for contact information.
Depending on the type of crawler, email addresses can be extracted from different sources (harddrive, CDs, etc. ). We have all the necessary tools to help you get emails from any source
Atomic Email Hunter Screenshots
Click on any screenshot to enlarge. A larger screenshot will open in the current window.
Our email crawler is much more than meets the eye, so if you want to get a deeper understanding of all the features, our support team is ready to answer all your questions. Besides, if you think that something doesn’t quite work the way it should, we will be thankful for any feedback that can allow us to further improve the performance of our software.
In the meantime, you can discover a lot more about our products by visting the support page
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An Introduction to Email Scraping | Hacker Noon
Email-address harvesting – Wikipedia
Email harvesting or scraping is the process of obtaining lists of email addresses using various methods. Typically these are then used for bulk email or spam.
The simplest method involves spammers purchasing or trading lists of email addresses from other spammers.
Another common method is the use of special software known as “harvesting bots” or “harvesters”, which spider Web pages, postings on Usenet, mailing list archives, internet forums and other online sources to obtain email addresses from public data.
Spammers may also use a form of dictionary attack in order to harvest email addresses, known as a directory harvest attack, where valid email addresses at a specific domain are found by guessing email address using common usernames in email addresses at that domain. For example, trying,,, etc. and any that are accepted for delivery by the recipient email server, instead of rejected, are added to the list of theoretically valid email addresses for that domain.
Another method of email address harvesting is to offer a product or service free of charge as long as the user provides a valid email address, and then use the addresses collected from users as spam targets. Common products and services offered are jokes of the day, daily bible quotes, news or stock alerts, free merchandise, or even registered sex offender alerts for one’s area. Another technique was used in late 2007 by the company iDate, which used email harvesting directed at subscribers to the Quechup website to spam the victim’s friends and contacts. 
Spammers may harvest email addresses from a number of sources. A popular method uses email addresses which their owners have published for other purposes. Usenet posts, especially those in archives such as Google Groups, frequently yield addresses. Simply searching the Web for pages with addresses — such as corporate staff directories or membership lists of professional societies — using spambots can yield thousands of addresses, most of them deliverable. Spammers have also subscribed to discussion mailing lists for the purpose of gathering the addresses of posters. The DNS and WHOIS systems require the publication of technical contact information for all Internet domains; spammers have illegally trawled these resources for email addresses. Spammers have also concluded that generally, for the domain names of businesses, all of the email addresses will follow the same basic pattern and thus are able to accurately guess the email addresses of employees whose addresses they have not harvested. Many spammers use programs called web spiders to find email addresses on web pages. Usenet article message-IDs often look enough like email addresses that they are harvested as well. Spammers have also harvested email addresses directly from Google search results, without actually spidering the websites found in the search.
Spammer viruses may include a function which scans the victimized computer’s disk drives (and possibly its network interfaces) for email addresses. These scanners discover email addresses which have never been exposed on the Web or in Whois. A compromised computer located on a shared network segment may capture email addresses from traffic addressed to its network neighbors. The harvested addresses are then returned to the spammer through the bot-net created by the virus. In addition, sometime the addresses may be appended with other information and cross referenced to extract financial and personal data.
A recent, controversial tactic, called “e-pending”, involves the appending of email addresses to direct-marketing databases. Direct marketers normally obtain lists of prospects from sources such as magazine subscriptions and customer lists. By searching the Web and other resources for email addresses corresponding to the names and street addresses in their records, direct marketers can send targeted spam email. However, as with most spammer “targeting”, this is imprecise; users have reported, for instance, receiving solicitations to mortgage their house at a specific street address — with the address being clearly a business address including mail stop and office number.
Spammers sometimes use various means to confirm addresses as deliverable. For instance, including a hidden Web bug in a spam message written in HTML may cause the recipient’s mail client to transmit the recipient’s address, or any other unique key, to the spammer’s Web site.  Users can defend against such abuses by turning off their mail program’s option to display images, or by reading email as plain-text rather than formatted.
Likewise, spammers sometimes operate Web pages which purport to remove submitted addresses from spam lists. In several cases, these have been found to subscribe the entered addresses to receive more spam. 
When persons fill out a form, it is often sold to a spammer using a web service or post to transfer the data. This is immediate and will drop the email in various spammer databases. The revenue made from the spammer is shared with the source. For instance, if someone applies online for a mortgage, the owner of this site may have made a deal with a spammer to sell the address. These are considered the best emails by spammers, because they are fresh and the user has just signed up for a product or service that often is marketed by spam.
In many jurisdictions there are anti-spam laws in place that restrict the harvesting or use of email addresses.
In Australia, the creation or use of email-address harvesting programs (address harvesting software) is illegal, according to the 2003 anti-spam legislation, only if it is intended to use the email-address harvesting programs to send unsolicited commercial email.  The legislation is intended to prohibit emails with ‘an Australian connection’ – spam originating in Australia being sent elsewhere, and spam being sent to an Australian address.
New Zealand has similar restrictions contained in its Unsolicited Electronic Messages Act 2007. 
In The United States of America, the CAN-SPAM Act of 2003 made it illegal to initiate commercial email to a recipient where the email address of the recipient was obtained by:
Using an automated means that generates possible electronic mail addresses by combining names, letters, or numbers into numerous permutations.
Using an automated means to extract electronic mail addresses from an Internet website or proprietary online service operated by another person, and such website or online service included, at the time the address was obtained, a notice stating that the operator of such website or online service will not give, sell, or otherwise transfer addresses maintained by such website or online service to any other party for the purposes of initiating, or enabling others to initiate, electronic mail messages.
Furthermore, website operators may not distribute their legitimately collected lists. The CAN-SPAM Act of 2003 requires that operators of web sites and online services should include a notice that the site or service will not give, sell, or otherwise transfer addresses, maintained by such website or online service, to any other party for the purposes of initiating, or enabling others to initiate, electronic mail messages.
Address munging—e. g., changing “” to “bob at example dot com”—is a common technique to make harvesting email addresses more difficult. Though relatively easy to overcome—see, e. g., this Google search—it is still effective.  It is somewhat inconvenient to users, who must examine the address and manually correct it.
Using images to display part or all of an email address is a very effective harvesting countermeasure. The processing required to automatically extract text from images is not economically viable for spammers. It is very inconvenient for users, who type the address in manually.
Email contact forms which send an email but do not reveal the recipient’s address avoid publishing an email address in the first place. However, this method prevents users from composing in their preferred email client, limits message content to plain text – and does not automatically leave the user with a record of what they’ve said in their “sent” mail folder.
In HTML, email addresses may be obfuscated in many ways, such as inserting hidden elements within the address or listing parts out of order and using CSS to restore the correct order. Each has the benefit of being transparent to most users, but none support clickable email links and none are accessible to text-based browsers and screen readers.
Requiring users to complete a CAPTCHA before giving out an email address is an effective harvesting countermeasure. A popular solution is the reCAPTCHA Mailhide service. (Note, 12. 9. 18: Mailhide is no longer supported. )
To enable prosecution of spammers under the CAN-SPAM Act of 2003, a website operator must post a notice that “the site or service will not give, sell, or otherwise transfer addresses maintained by such website or online service to any other party for the purposes of initiating, or enabling others to initiate, electronic mail messages. “
Mail Server Monitoring
Email servers use a variety of methods to combat directory harvesting attacks, including to refuse to communicate with remote senders that have specified more than one invalid recipient address within a short time, but most such measures carry the risk of legitimate email being disrupted.
A spider trap is a part of a website which is a honeypot designed to combat email harvesting spiders.  Well-behaved spiders are unaffected, as the website’s file will warn spiders to stay away from that area—a warning that malicious spiders do not heed. Some traps block access from the client’s IP as soon as the trap is accessed.  Others, like a network tarpit, are designed to waste the time and resources of malicious spiders by slowly and endlessly feeding the spider useless information.  The “bait” content may contain large numbers of fake addresses, a technique known as list poisoning; though some consider this practice harmful. 
^ Arthur, Charls (2007-09-13). “Do social network sites genuinely care about privacy? “. theguardian. Retrieved 2007-10-30.
^ Heather Harreld (5 December 2000). “Embedded HTML ‘bugs’ pose potential security risk”. InfoWorld. Archived from the original on 2006-12-10. Retrieved 2007-01-06.
^ “Spam Unsubscribe Services”. The Spamhaus Project Ltd. 29 September 2005. Retrieved 2007-01-06.
^ “EFA Analysis of Australian Spam Bills 2003”. Electronic Frontiers Australia. 2003-11-01. Address Harvesting Software and Lists. Archived from the original on 2021-05-04.
^ “Australia slams the door on spam”. 2003-08-18. Archived from the original on 2007-02-03. Retrieved 2021-07-04.
^ “Unsolicited Electronic Messages Act 2007 No 7, Public Act Subpart 2—Address-harvesting software and harvested-address lists”. Archived from the original on 2021-02-17. Retrieved 2021-07-04.
^ a b Silvan Mühlemann, 20 July 2008, Nine ways to obfuscate e-mail addresses compared
^ Hohlfeld, Oliver; Graf, Thomas; Ciucu, Florin (2012). Longtime Behavior of Harvesting Spam Bots (PDF). ACM Internet Measurement Conference.
^ Roel Van Gils, A List Apart, 6 November 2007, Graceful Email Obfuscation
^ Mailhide: Free Spam Protection
^ “15 U. S. Code § 7704 – Other protections for users of commercial electronic mail”, Section a. 4. b. 1. A. i
^ SEO Glossary: “A spider trap refers to either a continuous loop where spiders are requesting pages and the server is requesting data to render the page or an intentional scheme designed to identify (and “ban”) spiders that do not respect ”
^  A Spider Trap which bans clients which access it.
^ Thomas Zeithaml, Spider Trap: How It Works
^ Ralf D. Kloth, Trap bad bots in a bot trap
^ How to keep bad robots, spiders and web crawlers away
^ Ralf D. Kloth, Fight SPAM, catch Bad Bots: “Generating web pages with long lists of fake addresses to spoil the spam bot’s address data base is not encouraged, because it is unknown if the spammers really care and on the other hand, the use of those addresses by spammers will cause additional traffic load on network links and involved innocent third party servers. ”
^ Harvester Killer: generates fake emails and traps spiders in an endless loop.
^ “Archived copy”. Archived from the original on 2011-07-06. Retrieved 2011-02-12. CS1 maint: archived copy as title (link) A Spider Trap which generates 5, 000 fake email addresses and blocks the client from further access.
^ “Webmasters can respond to misbehaving spiders by trapping them, poisoning their databases of harvested e-mail addresses, or simply block them. ”
Frequently Asked Questions about email crawler
Is email scraping legal?
What is email scraper?
Email harvesting or scraping is the process of obtaining lists of email addresses using various methods. Typically these are then used for bulk email or spam.
What is the best email scraper?
Top 11 Email Scrapers For MarketersZoominfo. A full-featured email scraping platform with a comprehensive database. … Skrapp.io. An integrated platform that provides from Linkedin integration, a website search, domain search to leads directory. … Octoparse. … Hunter.io. … Rocket Reach. … Prospect.io. … Sales Navigator. … Slik.More items…•Aug 3, 2021