Comment Re:Not only that... (Score 1) 23
There is an even better solution thanks to modern password managers.
Create a unique email address for each person or company you provide with your email address
The moment you want to unsubscribe.. Turn off the destination email address entirely, and all messages will bounce with a 550 error.
This also helps with annoying data brokers selling lists with your address AND database access to certain tools where you type in a phone number or name and address, and the database spits out what email address belongs to that phone number or name.
OR the reverse you type in an email address, and the data brokers' search provide a name, phone number, physical address, etc, lookup for search by email address.