Where did the spam come from?


You probably receive newsletters from too many companies and in some cases do not remember ever giving them your email address. Here is a small trick to find out how they got a hold of your email. As far as I know it only works with gmail.

The next time you register on a website use a + tag in your email address. You can use an unlimited number of tags. So if your email address is john.doe@gmail.com and you want to register for, say, Decathlon ́s newsletter, use john.doe+decathlon@gmail.com.

Poor John Doe, he must receive a lot of spam.

If you receive a promotional email from a brand a few months later, and do not remember signing up for their list, checking the to field could reveal how they got your address.

About the author

Ivo Oltmans
By Ivo Oltmans


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