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Re:Avoiding Spam with Email Aliasing by mike-cardwell on Wednesday December 18, 2013 @08:50AM (#6927437)
I built a system years ago for automatically expiring email addresses: https://grepular.com/Automatically_Expiring_Email_Addresses

You can email any address of the format "YY-MM-DD"@tmp.grepular.com and it will work, but only if the YY-MM-DD date is in the future. Ie, [email protected] will work from now until Christmas and will bounce after that date.

It's really useful for signing up to services that I don't intend to use after that day, or for entering competitions etc. Competition draw is in a month? I'll pick an email address which expires in about 2 months and enter with that one.

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