Dear users! We are pleased to inform you that we’ve fulfilled all the announced activities to finalize our project! And now, it has reached a whole other level, unparalleled in the market!
The “snapshot” concept, which is used for quick validation (the User databases are compared with ours), took on a new meaning after we introduced the “time to live” concept for e-mail addresses. There are such domains as @rambler.ru, @
[email protected] (http://@aol.com ), and other unstable mail services, where the database relevance changes every day, and it makes no sense to consider a snapshot older than 2 months up-to-date. Each of the e-mail addresses on such domains receives a unique number and is removed from the “snapshot” after 2 months, which makes the snapshot more up-to-date and more accurate in updating databases. Other domains in the snapshot are similarly removed, with their time to live being individually specified.
A new final validation module has been connected. This is an interactive module that sorts and finally validates the e-mail addresses in the “unknown” file after quickly comparing them with the (above-defined) snapshot:
1) We’ve added CORP validation and final validation. CORPs are e-mail databases of enterprises containing up to 1,000 addresses. We’ve implemented a rather complex and non-obvious mechanism of verification, additional verification, and re-verification, as well as in-depth domain analysis. Here are the tasks we’ve successfully solved:
* “Spam trap” detection. These are e-mail addresses used by bots to detect network anomalies and have no payload. At the same time, they look like normal addresses, and any routine check shows that these are working addresses. This is what reduces the letter delivery rate and forces you to purchase more supplies. We include them in the “bad” database.
* “Trigger” detection. Some domains are configured in such a way that a database looking like
[email protected]@domain.com(
http://[email protected]) (random means a random value) will be shown as a working database by any verification. Just imagine how many non-existing e-mail addresses may one such domain contain (for example, a generated database contains millions of
non-working addresses), which actually don’t exist, but you’ll never know about it and will waste your resources and time on it. We detect them and send to the “unknown” file.
2) Media validation and final validation has also been added. Media are actually the same as CORPs, but containing from 1,000 to 1,000,000 domains. For this database, an algorithm combining the CORP, BIG, and SUPERBIGS validation algorithms works.
3) BIG and SUPERBIG final validation has been added. We’ve done our best to cover all domains that can at least somehow be handled with any of the known and our proprietary validation algorithms. We are constantly working to broaden this list and can assure you that almost all the domains are now covered.
To summarize all of the above, we offer you a unique e-mail address validation service that features impressive accuracy, speed, and coverage. And to date it’s unparalleled in the market.
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