[Mailman-Users] accept_these_nonmembers for umbrella lists

[Mark Sapiro]

On 01/05/2017 12:58 PM, Gretchen R Beck wrote:
> 
> I have an umbrella list.  My address (cmupythia at cmu.edu) is a member of the parent list (list1), and on the accept_these_nonmembers on the second list (list2). It is NOT subscribed to list2
> 
> When I post to list2 directly, the post is accepted and delivered. When I post to list1, the post is held for moderation by list2 as a non-member poster.
> 
> Default.py has SENDER_HEADERS = ('from', None, 'reply-to', 'sender')  and these are not changed in mm_cfg.py


The article at <https://wiki.list.org/x/4030574> may help.

The most likely explanation is that you have

USE_ENVELOPE_SENDER = Yes

in mm_cfg.py. This means that list2 is checking the Sender: header value
against the accept_these_nonmembers list and the Sender: header has the
list1-bounces address, not yours.

There are other possibilities depending on various settings of list1.
Note that cmu.edu publishes DMARC p=none, so it's possible that list1 is
munging the From: header depending on DMARC settings.

-- 
Mark Sapiro <mark at msapiro.net>        The highway is for gamblers,
San Francisco Bay Area, California    better use your sense - B. Dylan