not getting my own contributions from the list ???

[Robert Heller]

At Wed, 8 Apr 2015 16:29:49 -0400 "Derek Atkins" <derek at ihtfp.com> wrote:

> 
> 
> On Wed, April 8, 2015 4:22 pm, Liz wrote:
> > On Wed, 8 Apr 2015 15:00:41 +0000 (UTC)
> > paula hendricks <ph_calif at yahoo.com> wrote:
> >
> >> this is too weird. i just changed my email address and now i don't
> >> get my own postings from the gnu cash list. is this a gnu cash issue
> >> or a yahoo issue? does yahoo  think i don't want mail from myself?
> >
> > I've checked the Gnucash end, and you are set to get mail from yourself
> > from this list.
> 
> My guess is "DMARC".  Basically, Yahoo is basically telling the world
> "users with a From address of @yahoo.com can only originate at yahoo.com
> servers, and if you receive a message with a From: header of .*@yahoo.com
> that didn't original with us, then you should drop it on the floor". 

Actually, not Yahoo's policy setting is not set to 'drop it on the floor'
(discard), Yahoo's policy setting is set to 'reject': eg 'return to sender'.

> Well, mail that comes through our server still has your From address set
> to you, so it hits Yahoo's instructions to drop it on the floor, which
> Yahoo is, itself, doing.  Google also enforces Yahoo's setting to drop it
> on the floor.

Google actually does NOT enforce Yahoo's setting to *reject* it. Google drops
it on the floor: Google is treating a 'reject' policy as a 'discard' policy.
Yahoo, AOL, Hotmail, and some others *do* reject it, generally back to the
list server (Mailman), which then marks the 'hapless' Yahoo, AOL, Hotmail,
etc. users with a 'bounce', and after enough of these bounces, the 'hapless'
Yahoo, AOL, Hotmail, etc. users get mail delivery suspended from the list (at
which point they stop receiving all posts to the list). Yahoo has set this
(very extreme) policy because they have an on-going problem with spammers
using .*@yahoo.com addresses and/or breaking into Yahoo accounts and stealing
address books, etc.

> 
> My suggestion:  Don't use Yahoo for email lists.

Right.  AOL, Hotmail, and a few other 'freemail' servers are almost as bad. 

*Some* Mailman list admins have gone to the level of *banning* .*@yahoo.com 
address from subscribing to their lists.

> 
> > Liz
> 
> > Please remember to CC this list on all your replies.
> > You can do this by using Reply-To-List or Reply-All.
> 
> -derek
> 
> PS: We are currently running a version of mailman that can, theoretically,
> munge the from addresses of participants who come from DMARC-unfriendly
> sites like Yahoo.   I have not, yet, turned that on.   However I could
> probably be convinced to turn it on....

It is pretty much necessary if you are going to let people with Yahoo.com 
E-Mail subscribe and post to the list: one either turns on the DMARC hackery 
in Mailman or bans *@Yahoo.com subscribers...

> 

-- 
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