[dmarc-discuss] Discussion mailing lists - a reality check

Al Iverson aiverson at spamresource.com
Sun Jun 24 12:44:05 PDT 2012

I do. And I have occasionally seen oddball rejections from a few large receivers from time to time. I'm not saying they are necessarily DMARC-related, though. I do think what you and Dave may have here is a lot of sending history from an IP or block. I know from my ESP work that a IP with many years history runs into less problems than a new IP, even if sending the same mail to the same people. So I don't think it reflects reality to brush off concerns by saying that you've been doing it for years without any issues. 


On Jun 23, 2012, at 9:21 PM, "John R Levine" <johnl at taugh.com> wrote:

> How many people here actually run discussion list servers?  I run one with about a hundred lists.  I know Dave Crocker has one at mipassoc.org. Does anyone else?
> I know from direct experience that discussion lists don't have delivery problems.  They do not need DMARC's help.  The worst thing that happens is that one gets spammed from a subscriber's phished account (something DMARC can't fix), there's a flurry of complaints, and that's it.
> Regards,
> John Levine, johnl at taugh.com, Taughannock Networks, Trumansburg NY
> "I dropped the toothpaste", said Tom, crestfallenly.
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