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Date:	Mon, 6 May 2019 16:57:20 -0400
From:	Christopher Faylor <cgf-use-the-mailinglist-please AT cygwin DOT com>
To:	postmaster AT sourceware DOT org
Cc:	cygwin AT cygwin DOT com
Subject:	Re: ezmlm warning (fixed)
Message-ID:	<20190506205720.GA13386@ednor.casa.cgf.cx>
Mail-Followup-To:	postmaster AT sourceware DOT org, cygwin AT cygwin DOT com
MIME-Version:	1.0
In-Reply-To:	<2157b99b2e5c2ac94d03355e0b3980cf@plebeian.com>
User-Agent:	Mutt/1.5.20 (2009-06-14)

The duplicate Sender header was mainly coming from announce-list
resends.  It was helpfully added by perl's Mail::Internet package.

The mailing list software has been modified to delete incoming Sender
header fields when it sees them which should result only one Sender:
header in mail to the list.

On Mon, May 06, 2019 at 04:02:55PM -0400, sourcemaster wrote:
>Please use postmaster (cc'ed), not sourcemaster, for email issues.
>See: RFC 822.
>
>On Mon, May 06, 2019 at 03:51:21PM -0400, Chris Wagner wrote:
>>Maintainers, I have been getting numerous bounce warnings and spam
>>holds on mail sent to me by the Cygwin list.  The spam holds are due
>>to protocol violations.  This ezmlm warning is because of: 550
>>Messages should have one or no Sender headers, not 2.
>>
>>If the list software could be made more compliant or I could be
>>informed about some loosened setting on my spam panel.
>>
>>Thanks.
>>
>>
>>
>>On 2019-05-06 2:22 pm, cygwin-help wrote:
>>>Hi! This is the ezmlm program. I'm managing the
>>>cygwin mailing list.
>>>
>>>
>>>Messages to you from the cygwin mailing list seem to
>>>have been bouncing. I've attached a copy of the first bounce
>>>message I received.
>>>
>>>If this message bounces too, I will send you a probe. If the probe
>>>bounces,
>>>I will remove your address from the cygwin mailing list,
>>>without further notice.
>>>
>>>
>>>I've kept a list of which messages from the cygwin mailing list have
>>>bounced from your address.
>>>
>>>Copies of these messages may be in the archive.
>>>To retrieve a set of messages 123-145 (a maximum of 100 per request),
>>>send an empty message to:
>>>   <cygwin-get.123_145@>
>>>
>>>To receive a subject and author list for the last 100 or so messages,
>>>send an empty message to:
>>>   <cygwin-index@>
>>>
>>>Here are the message numbers:
>>>
>>>   216505
>>>   216503
>>>   216515
>>>   216521
>>>   216525
>>>   216526
>>>   216529
>>>   216533
>>>   216540
>>>   216556
>>>   216557
>>>   216558
>>>   216559
>>>   216560
>>>   216561
>>>   216563
>>>   216564
>>>   216562
>>>   216571
>>>   216574
>>>   216575
>>>   216583
>>>   216579
>>>   216585
>>>   216586
>>>   216580
>>>   216587
>>>   216588
>>>   216590
>>>   216582
>>>   216584
>>>   216591
>>>   216589
>>>   216581
>>>   216594
>>>   216595
>>>   216598
>>>   216599
>>>   216601
>>>   216602
>>>   216600
>>>   216603
>>>   216604
>>>   216614
>>>   216623
>>>   216616
>>>   216615
>>>   216618
>>>   216619
>>>   216620
>>>   216621
>>>   216622
>>>
>>>--- Enclosed is a copy of the bounce message I received.
>>>
>>>Return-Path: <>
>>>Received: (qmail 67289 invoked for bounce); 24 Apr 2019 18:35:31 -0000
>>>Date: 24 Apr 2019 18:35:31 -0000
>>>From: MAILER-DAEMON AT sourceware DOT org
>>>To: cygwin-return-216505-@
>>>Subject: failure notice
>>>
>>>Hi. This is the qmail-send program at sourceware.org.
>>>I'm afraid I wasn't able to deliver your message to the following
>>>addresses.
>>>This is a permanent error; I've given up. Sorry it didn't work out.
>>>
>>><wagnerc@>:
>>>User and password not set, continuing without authentication.
>>><wagnerc@> 69.64.57.52 failed after I sent the message.
>>>Remote host said: 550 Messages should have one or no Sender
>>>headers, not 2.
>>

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