Due to the fact that I provide
absolute protection services
against spam , I became aware of which companies (or rather their websites) are leaking their databases or selling them directly.
The fact is, to protect your mailboxes from spam using my technology, you need to leave a unique e-mail address on each site where you register. For example: www_habr_ru@somedomain.ru. As you can see, before the dog you can see a slightly changed url of the site on which we register.
When spam starts to arrive on this unique e-mail, it is obvious that the e-mail base has been stolen or sold. And this unfortunate e-mail is entered in the stop list.
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Here is a list of sites on which I personally registered myself and which somehow leaked (approximately 2-year statistics):
megastock.ru
livejournal.com
begun.ru
ru.ibm.com
asppassport.com
joblist.ru
astock.ru
tock.ru
Be careful! Leaving your e-mails on these sites runs the risk of becoming a victim of spammers!