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by lidder86 619 days ago
Proxy address ie user@gmail.com you would use ia+user@gmail.com and have rules to match that
1 comments

It’s user+ia@gmail.com, and it’s a poor substitute for a dedicated domain. For one, every attacker knows about plus addressing and that those addresses are really all the same email account.
They still don't know what you put after the "+" to log into another service.