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A comment on The dots do matter: how to scam a Gmail user. Parent comment

Re:The dots do matter: how to scam a Gmail user by chatmasta on Saturday April 07, 2018 @03:46PM (#16782471)
But you can’t put the cat back in the bag. People have used the system to sign up for multiple emails at multiple sites, expecting them to go to the same inbox.

I suppose you could solve the problem by grandfathering all existing aliases and whitelisting delivery of only those that received at least one email before the policy change. And also continuing to forbid registration of any aliases.

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Re:The dots do matter: how to scam a Gmail user by jwilk on Saturday April 07, 2018 @03:49PM (#16782499)
I'm (naively?) hoping that Google doesn't know which aliases received at least one email.
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Re:The dots do matter: how to scam a Gmail user by chatmasta on Saturday April 07, 2018 @03:53PM (#16782518)
Of course they know. They delivered the emails to the aliases, which are permanently in the To: field of the metadata. As long as you can see the email “to” address in the gmail web interface, so can Google.
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Re:The dots do matter: how to scam a Gmail user by jwilk on Saturday April 07, 2018 @04:09PM (#16782617)
What about emails that were deleted?
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Re:The dots do matter: how to scam a Gmail user by batuhanw on Saturday April 07, 2018 @04:51PM (#16782886)
Do you mean emails marked as deleted with timestamp?
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Re:The dots do matter: how to scam a Gmail user by samb1729 on Saturday April 07, 2018 @05:09PM (#16783000)
They weren't deleted
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