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Found a mailing list ("marketing") service that allowed you to sign up with a +, but any 'unsubscribe' was a link to a URL with your email in it, with the + sig
by mgkimsal 4y ago
Found a mailing list ("marketing") service that allowed you to sign up with a +, but any 'unsubscribe' was a link to a URL with your email in it, with the + sign in it, and... the unsubscribe page could magically never find your address to unsubscribe you. I submitted this as a bug report to the service, and was brushed aside. At that time, I also had a couple friends who worked there, and tried to run it up the flagpole there, and I was told about half the folks there didn't understand the problem, and the other half didn't really care, because the + trick was seen as very niche. So I started reporting all the newsletters I got as 'spam' - well after I'd tried to unsubscribe.
- NLPlatypus 4y agoYou could sign them up using many + emails
- account42 4y agoDid you try to replace the + in the unsubscribe URL with %2B (the urlencoding of a +)? Because interpreting the URL on the server will almost certainly mean urldecoding the arguments which will turn + into a space.
- monkpit 4y agoDoesn’t the browser do this for you?
- djbusby 4y agoNope, cause + used to mean space. So plus symbol has sometimes to be left alone, some times replaced - due to still supporting legacy stuff and the newer RFC that makes + go away.
- mgkimsal 4y agoFWIR, yes. And it didn't work. They had some weird parsing going on to deal with some weird legacy stuff from years earlier, and... it made life more complicated than it needed to be.
- _jal 4y agoI ran in to the exact same thing. My solution was subscribing "legal+i_bet_you_will_fix_it_now@service.com" to the same list.