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Re: [Jmap] Address Validation (was Re: Submission)

Paul Smith <paul@pscs.co.uk> Tue, 25 April 2017 15:03 UTC

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To: Adrien de Croy <adrien@qbik.com>, Cyrus Daboo <cyrus@daboo.name>, "jmap@ietf.org" <jmap@ietf.org>
References: <1492996915.3310412.953749536.0F1C8B46@webmail.messagingengine.com> <20170424014957.39235.qmail@ary.lan> <emb951e04d-3dc9-4244-915b-21bd272245ff@bodybag> <alpine.OSX.2.20.1704240925190.68584@ary.qy> <e41c88ed-2ed5-47b8-923c-bfac12334808@gulbrandsen.priv.no> <DB03A7F421F2B9E4A8C6AD1D@caldav.corp.apple.com> <6319482c-e53f-4483-870b-844e23030f8c@gulbrandsen.priv.no> <A9622742-D931-4975-9572-04878949EDDE@fugue.com> <a9edd67d-64fc-56cc-a64d-92db10e3369d@pscs.co.uk> <em84e4d1f0-cfb3-46c6-99e0-a3398bda2bc4@bodybag> <CA68A753DA49B845CDCDD17A@caldav.corp.apple.com> <b76a67ec-28df-a13f-9960-a61ce1cec47a@pscs.co.uk> <em2c4fdcdc-cce2-4d50-9f29-00d64006366d@bodybag>
From: Paul Smith <paul@pscs.co.uk>
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Date: Tue, 25 Apr 2017 15:57:10 +0100
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Subject: Re: [Jmap] Address Validation (was Re: Submission)
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On 25/04/2017 15:37, Adrien de Croy wrote:
>
> I'd expect a lot of servers don't honour SUCCESS DSNs for a number of 
> reasons (privacy, spam avalanche etc).

I'm not sure of that - is it any worse than accepting a message with a 
2xx response? 'Delivered' means it has been dumped in a user's mailbox, 
not that it has been read or anything so it doesn't give any more 
information other than the final SMTP server accepting the message.

If it does cause problems, those would probably happen for any scalable 
delivery notification system dreamt up for JMAP as well.

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