On 17/06/14 23:31, Daniel Kahn Gillmor wrote: > On 06/17/2014 06:11 PM, Trevor Perrin wrote: >> On Tue, Jun 17, 2014 at 6:04 AM, Eleanor Saitta <[email protected]> wrote: >>> >>> In the past, we've talked about having an optional untrusted proxy >>> within SMTorP, either for sending or receiving, mostly to deal with >>> the purely practical problem of both users not being online at the >>> same time. Our preference had been use the proxy on the sending side, >>> as that way the sender can see when their message actually reached the >>> receiver's mailpile, which we feel broadly maps to existing user >>> expectations with respect to email behavior. > [...] > >> Are there really "existing user expectations" that senders know when >> messages reach the recipient's mail client? That's a nice feature, >> but seems like it could be handled by delivery receipts which allow >> recipients to opt-out. > > [..] > > Eleanor, where do you see the "existing user expectations" around > delivery status? >
I don't have data on "user expectations", but from the sender's point of view: if the recipient opts out of sending me a delivery receipt, I don't know that they received my message - a malicious network could have dropped it. So, I might like it if my messaging program repeatedly re-sent the message until I got this acknowledgement. X -- GPG: 4096R/1318EFAC5FBBDBCE git://github.com/infinity0/pubkeys.git
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