Re: [bitfolk] Yahoo! breaks every mailing list in the world …

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Author: Andy Smith
Date:  
To: users
Subject: Re: [bitfolk] Yahoo! breaks every mailing list in the world (including this one)

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gpg: Signature made Wed Apr 16 11:36:58 2014 UTC
gpg: using DSA key 2099B64CBF15490B
gpg: Good signature from "Andy Smith <andy@strugglers.net>" [unknown]
gpg: aka "Andrew James Smith <andy@strugglers.net>" [unknown]
gpg: aka "Andy Smith (UKUUG) <andy.smith@ukuug.org>" [unknown]
gpg: aka "Andy Smith (BitFolk Ltd.) <andy@bitfolk.com>" [unknown]
gpg: aka "Andy Smith (Linux User Groups UK) <andy@lug.org.uk>" [unknown]
gpg: aka "Andy Smith (Cernio Technology Cooperative) <andy.smith@cernio.com>" [unknown]
On Sun, Apr 13, 2014 at 09:44:53PM +0000, Andy Smith wrote:
> As this is not something that we can easily fix, and represents a
> failure to understand how the Internet works on Yahoo!'s part, I
> have had to moderate those 5 members.


Turns out I was a bit over-enthusiastic about this: the DMARC
setting only currently applies to yahoo.com addresses, not
yahoo.co.uk, or any other yahoo.* domain. Therefore there is
actually only one of you affected, and the rest have been
unmoderated.

You can check that situation with:

$ dig +short txt _dmarc.yahoo.com
"v=DMARC1\; p=reject\; sp=none\; pct=100\; rua=mailto:dmarc-yahoo-rua@yahoo-inc.com, mailto:dmarc_y_rua@yahoo.com\;"

If it doesn't say "p=reject" then it's okay.

Cheers,
Andy

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