nanog mailing list archives
Re: The Reg does 240/4
From: Michael Thomas <mike () mtcc com>
Date: Sat, 17 Feb 2024 11:01:48 -0800
On 2/17/24 10:19 AM, Owen DeLong via NANOG wrote:
Mike, it’s true that Google used to be a lot less strict on IPv4 email than IPv6, but they want SPF and /or DKIM on everything now, so it’s mostly the same. There is less reputation data available for IPv6 and server reputation is a harder problem in IPv6, but reputation systems are becoming less relevant.
I kind of get the impression that once you get to aggregates at the domain level like DKIM or SPF, addresses as a reputation vehicle don't much figure into decision making. But what happens under the hood at major mailbox providers is maddeningly opaque so who really knows? It would be nice if MAAWG published a best practices or something like that to outline what is actually happening in live deployments.
Mike
Current thread:
- Re: The Reg does 240/4, (continued)
- Re: The Reg does 240/4 Stephen Satchell (Feb 14)
- Re: mail and IPv6, not The Reg does 240/4 John Levine (Feb 14)
- Re: The Reg does 240/4 Mark Andrews (Feb 14)
- Re: The Reg does 240/4 Lyndon Nerenberg (VE7TFX/VE6BBM) (Feb 15)
- Re: The Reg does 240/4 Owen DeLong via NANOG (Feb 15)
- Re: mail and IPv6, not The Reg does 240/4 Tim Howe (Feb 15)
- Re: The Reg does 240/4 Mike Hammett (Feb 16)
- RE: The Reg does 240/4 Brotman, Alex via NANOG (Feb 16)
- Re: The Reg does 240/4 John Levine (Feb 16)
- Re: The Reg does 240/4 Owen DeLong via NANOG (Feb 17)
- Re: The Reg does 240/4 Michael Thomas (Feb 17)
- Re: IPv6 mail The Reg does 240/4 John Levine (Feb 17)
- Re: IPv6 mail The Reg does 240/4 Michael Thomas (Feb 17)
- Re: The Reg does 240/4 Tom Beecher (Feb 14)
- Re: The Reg does 240/4 Owen DeLong via NANOG (Feb 15)
- Re: The Reg does 240/4 Christopher Hawker (Feb 15)
- Re: The Reg does 240/4 Owen DeLong via NANOG (Feb 15)
- Re: The Reg does 240/4 Lyndon Nerenberg (VE7TFX/VE6BBM) (Feb 15)
- Re: The Reg does 240/4 William Herrin (Feb 15)
- Re: The Reg does 240/4 Owen DeLong via NANOG (Feb 15)
- Re: The Reg does 240/4 Brian Knight via NANOG (Feb 15)