[kwlug-disc] mutt-compatible mail client

William Park opengeometry at yahoo.ca
Sun May 11 04:09:11 EDT 2014


I'm using yahoo.ca address, and I'm getting all mailing lists that I'm
used to.
-- 
William

On Sun, May 11, 2014 at 03:24:57AM -0400, Bob Jonkman wrote:
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> William Park wrote:
> > Well, if it was working, then what's changed?
> 
> Yahoo changed.  They recently started enforcing DMARC, which, to
> quote, Breaks! Every! Mailing! List! In! The! World!
> 
> http://www.theregister.co.uk/2014/04/08/yahoo_breaks_every_mailing_list_in_the_world_says_email_guru/
> 
> I see Paul is using a Yahoo e-mail address, so he might be affected.
> 
> Perhaps the list causing problems mungs the message headers so that
> the mail appears to come from the mailing list, whereas the KWLUG
> mailing list preserves the original sender's name and address.  DMARC
> requires the headers to remain unmodified, and for the Return-to
> header to match the sending domain.  Mailing lists can modify those
> things, so Yahoo could now be rejecting those messages.
> 
> Last month I saw a sudden burst of "this user has been unsubscribed"
> on mailing lists I administer; they were all from shaw.ca and
> rogers.com, which use Yahoo Mail as their mail provider.  It may have
> been because of DMARC rejections at Yahoo. I suspect the subscribers
> themselves would never be informed of the forced unsubscriptions,
> because any notifications would be rejected as well.
> 
> I suggest that Paul tries sending messages to the mailing list from a
> different (non-Yahoo) address. If that works, then I suggest finding a
> new mail provider.
> 
> - --Bob, who suggests finding a new mail provider regardless.
> 
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