26 Apr
2014
26 Apr
'14
2:08 p.m.
On Sun, Apr 13, 2014 at 09:44:53PM +0000, Andy Smith wrote:
Yahoo! have made a change to their DMARC settings in a
way that is
incompatible with how Internet mailing lists tend to operate. As a
result it is likely that members of this list (5 of you) with a
Yahoo! email account will start to cause email delivery issues for
others subscribers.
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. My best suggestion is for
those affected to change email address if you wish to continue
posting to this and other mailing lists.
Sorry about that.
I don't expect there are many, if any, AOL users subscribed to this
list, but AOL has followed Yahoo and set its DMARC policy to p=reject:
http://postmaster-blog.aol.com/2014/04/22/aol-mail-updates-dmarc-policy-to-…
AOL, like Yahoo, has been suffering from spam sent from spoofed
addresses (to the addresses' contacts).
The same things has started happening to Gmail addresses as well. I
don't expect Gmail to follow suit and change its DMARC policy - at least
not without some prior announcement - but one never knows and it's good
to keep in mind that this is always a possibility.
Martijn.