Re: [apps-discuss] Mail client configuration via something, maybe WebFinger
John C Klensin <john-ietf@jck.com> Wed, 10 February 2016 18:07 UTC
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Date: Wed, 10 Feb 2016 13:07:01 -0500
From: John C Klensin <john-ietf@jck.com>
To: Doug Royer <douglasroyer@gmail.com>, apps-discuss@ietf.org
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Subject: Re: [apps-discuss] Mail client configuration via something, maybe WebFinger
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--On Wednesday, February 10, 2016 10:05 -0700 Doug Royer <douglasroyer@gmail.com> wrote: >... > (1) I just checked GMAIL, YAHOO, AOL, HOTMAIL, and my ISP. > Only GMAIL seems to -mostly- provide the correct information. > > Gmail SRV returns: > > _submission._tcp.gmail.com. 86400 IN SRV 5 0 587 > smtp.gmail.com. > > Yet I have to use port 465 (not 587 in the SRV record). 587 > simply fails for me - I did not care why. > > (2) Some ISP's want your email address in all lower case when > authenticating, others want it as you entered it. When I setup > with my isp, it asked what email address I wanted: I entered > "DougRoyer", so that is how I entered my account name. I have >... Doug, I learned a few things from your note, most of which, sadly, I had already guessed at. One is a reminder about where at least some of the complexity of ACAP comes from (I think there is more than is necessary, but that is another question). Unless we are going to change a lot of habits, conventions, and operational decisions that make perfectly good sense in their own environments, we need a system that is flexible enough to deliver configuration information to different users (and their MUAs/ Clients) based on location (sometimes "normal", sometimes "right now"), on user or client identifier (which may or may not be connected to a mailbox name in an obvious way), on properties of the client software, etc. In some, probably most, cases, the server from which the information comes will make the decisions and send out only the specific information needed to configure the client but there will be cases where it would be better to send out information that gives the client choices that only it can evaluate. For some situations, it will need to receive the request and send the response in encrypted form; for others that may be unnecessary, undesirable, or worse. To the extent to which the location or client software are involved in the decision about what to send out, whatever is done will have to work despite our best efforts to obscure the information in the interest of privacy, leading to some of the use cases for sending out a lot of information and letting the client choose. Now, while I still think ACAP is too complex and probably includes fundamental design flaws, the above fairly strongly suggests that a DNS record or two, or even invocation of WebFinger or something else popular, might be part of the solution, but are, at best, only a small part... and might encourage sloppy thinking that fails to cover a lot of important cases. If we do want to include those cases, this isn't going to be an easy problem, and that brings us back to John Levine's question about inertia (among others). john
- Re: [apps-discuss] Mail client configuration via … Eric Burger
- Re: [apps-discuss] Mail client configuration via … Cyrus Daboo
- Re: [apps-discuss] Mail client configuration via … Arnt Gulbrandsen
- Re: [apps-discuss] Mail client configuration via … Dave Cridland
- Re: [apps-discuss] Mail client configuration via … John Levine
- Re: [apps-discuss] [webfinger] Mail client config… Paul E. Jones
- Re: [apps-discuss] Mail client configuration via … Stephen Farrell
- Re: [apps-discuss] Mail client configuration via … Paul E. Jones
- Re: [apps-discuss] Mail client configuration via … Eric Burger
- Re: [apps-discuss] Mail client configuration via … John C Klensin
- [apps-discuss] Mail client configuration via WebF… Paul E. Jones
- Re: [apps-discuss] Mail client configuration via … Dave Cridland
- Re: [apps-discuss] Mail client configuration via … Claudio Allocchio
- Re: [apps-discuss] Mail client configuration via … Paul E. Jones
- Re: [apps-discuss] Mail client configuration via … John C Klensin
- Re: [apps-discuss] Mail client configuration via … John C Klensin
- Re: [apps-discuss] Mail client configuration via … Phillip Hallam-Baker
- Re: [apps-discuss] Mail client configuration via … Phillip Hallam-Baker
- Re: [apps-discuss] Mail client configuration via … Phillip Hallam-Baker
- Re: [apps-discuss] Mail client configuration via … John Levine
- Re: [apps-discuss] Mail client configuration via … Phillip Hallam-Baker
- Re: [apps-discuss] Mail client configuration via … Arnt Gulbrandsen
- [apps-discuss] call blocking was Re: Mail client … t.petch
- Re: [apps-discuss] Mail client configuration via … Eric Burger
- Re: [apps-discuss] Mail client configuration via … Claudio Allocchio
- Re: [apps-discuss] Mail client configuration via … Doug Royer
- Re: [apps-discuss] Mail client configuration via … John Levine
- Re: [apps-discuss] Mail client configuration via … Arnt Gulbrandsen
- Re: [apps-discuss] Mail client configuration via … Doug Royer
- Re: [apps-discuss] Mail client configuration via … Eric Burger
- Re: [apps-discuss] Mail client configuration via … John C Klensin
- Re: [apps-discuss] Mail client configuration via … John Levine
- Re: [apps-discuss] Mail client configuration via … John Levine
- Re: [apps-discuss] Mail client configuration via … Arnt Gulbrandsen
- Re: [apps-discuss] Mail client configuration via … Arnt Gulbrandsen
- Re: [apps-discuss] Mail client configuration via … Doug Royer
- Re: [apps-discuss] Mail client configuration via … Doug Royer
- Re: [apps-discuss] Mail client configuration via … Doug Royer
- Re: [apps-discuss] Mail client configuration via … John Levine
- Re: [apps-discuss] Mail client configuration via … Phillip Hallam-Baker
- Re: [apps-discuss] Mail client configuration via … Phillip Hallam-Baker