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Lastest news:
17 Oct 2018
Improved processing for "shaw.ca" emails.
26 Sep 2018
Service working in "optimal" mode, percent of "unknowns" is low like month ago.
24 Sep 2018
Finishing of files was delayed for few hours because of maintenance in data center.
17 Sep 2018
Percent of unknowns is much lower than two weeks ago, and keep decreasing.
6 Sep 2018
Total numer of active files is limited with 100 files per customer, in other case customer getting "error_too_many_files".
6 Sep 2018
Empty files can't be uploaded any more and customer getting "error_file_is_empty".
1 Sep 2018
Service giving more "unknowns" than usually, but this is temporary.
31 Aug 2018
Improved handling of smtp servers that closing connection before "HELO" message.
19 Aug 2018
We started to mark disposable yahoo emails with status "unknown" and substatus "unknown".
13 Aug 2018
Fix for very-very slow SMTP servers
12 Aug 2018
Improved verification of emails "from big providers"  that are "temporary down".
4 Aug 2018
Reduced percent of "unknown" results for yahoo and aol processing.
3 Aug 2018
We fixed issue that was during last 48 hours when part of emails with status "fail" was marked with "unknown" status and "unmatched" substatus.
15 July 2018
Improved processing for domains with broken DNS, such domains will be marked with substatus "domain_error" (not "dead_server" like before).
15 June 2018
Improved patterns for sub-statuses, percent of unknowns will be a little lower.
6 June 2018
Improved syntax handling for hotmails.
26 May 2018
Improved handling for "dead" servers.
25 May 2018
Uploaded file and related reports will be deleted automatically after 30 days or after click to "delete" button.
13 Apr 2018
We getting more "unknown" results from yahoo than usually, working on this.
12 Apr 2018
Added processor for speed up re-verification for "little" files.
11 Apr 2018
Fixed problem with bulk processing (when all new files was marked as "incorrect"). We apologize for that and decreasing price for bulk processing to 50% until 18 Apr.
4 Feb 2018
Bulk processing will be stopped for 30 minutes, because of maintenance. [done]
2 Feb 2018
Fixed endless re-verification for msn.fr emails.
9 Oct 2017
Bulk processing was very slow today (because of problem with dc), fixed.
25 Sep 2017
Some files was delayed after verification, fixed.
12 Sep 2017
Perfomance issue was fixed.
8 Sep 2017
Service is overloaded because of issue with DC, we working on it.
15 Aug 2017
Increased processing speed for "little" files.
2 Jul 2017
Improved processing for private domains that hosted by office365.
13 Jun 2017
We regenerated reports for files that was finished 1-2 days ago but with empty reports.

Greylisting and online email verification


What is greylisting

Greylisting is method for prevent spam sending. This antispam technology used from 2004, initially it was used by some little email services,
but now we know that it's used by some very-popular email services.
We have no special statistics, but about 15% emails (during last 2 years), and about 25% (during last 4 month) - that was verified by our
service are secured by greylisting like technology.
There are very lots types of greylisting, but it can be splitted into four basic parts, email delivery allowed only for:
1) "white-listed IP", white-listed is global for whole email service.
2) "white-listed domains", white-listed is global for whole email service.
3) "white-listed IP", white-listed is local for each recipient email box.
4) "white-listed domains", white-listed is local for each recipient email box.

 

Greylisting and Anti-Greylisting technology

As you can see greylisting 3) and 4) is not trivial and making problems for email verification, up to 50% "unknown" emails.
That is why we develop our Anti-Greylisting technology, that helping to decrease amount of "unknown" emails.
Our technology is different effective for different email services, because greylisting settings are very-very different.
Sometimes greylisting can be broken through 15 minutes, sometimes through 1 days...
That is why our solution is friendly with biggest part of email services, but is not 100% effective.
Our Anti-Greylisting technology implemented in online bulk email validator, we strongly recommend to use it for all verifications.
 
Verify email list in two easy steps!

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