nanog mailing list archives
RE: Is your ISP blocking outgoing port 25?
From: "John R. Levine" <johnl () iecc com>
Date: Mon, 22 Jun 2009 17:38:14 +0100 (BST)
The bootstrap question is addressed by requiring the end-user to know their e-mail address and password. Based on the domain name, the implementation would reach out to https://something.domain-name.tld and download the relevant "schema" and data for IMAP, SMTP, POP3, etc, in ordered priority. Based on what the e-mail client could support, the desired settings would be displayed, and upon end-user approval, applied.
End-user approval? That means support calls, ISPs wouldn't like that.I can believe something like this could be made to work, but I would think hard about all the way that web sessions can get screwed up or hijacked before I persuaded myself that a scheme was likely to work where it needed to work (e.g., when connecting to a hotspot that hijacks all web sessions until you log in) while not being subject to hostile spoofing.
Followups definitely to IETF-something. R's, John
Current thread:
- Re: Is your ISP blocking outgoing port 25?, (continued)
- Re: Is your ISP blocking outgoing port 25? Jeroen Wunnink (Jun 19)
- Re: Is your ISP blocking outgoing port 25? Sean Donelan (Jun 19)
- Re: Is your ISP blocking outgoing port 25? Steven King (Jun 19)
- Re: Is your ISP blocking outgoing port 25? Michael Thomas (Jun 19)
- Re: Is your ISP blocking outgoing port 25? Dave Pooser (Jun 20)
- RE: Is your ISP blocking outgoing port 25? Frank Bulk (Jun 22)
- Re: Is your ISP blocking outgoing port 25? John Levine (Jun 22)
- RE: Is your ISP blocking outgoing port 25? Frank Bulk (Jun 22)
- RE: Is your ISP blocking outgoing port 25? Matthew Huff (Jun 22)
- RE: Is your ISP blocking outgoing port 25? Frank Bulk (Jun 22)
- RE: Is your ISP blocking outgoing port 25? John R. Levine (Jun 22)
- RE: Is your ISP blocking outgoing port 25? Ted Hardie (Jun 22)
- Re: Is your ISP blocking outgoing port 25? Randy Bush (Jun 19)
- Re: Is your ISP blocking outgoing port 25? Tony Finch (Jun 19)