[Mailman-Users] Emails lost due to receipient spam filters

Keith Bierman khbkhb at gmail.com
Thu Aug 28 16:57:35 CEST 2014

DMARC aside, GMAIL users who don't wish their mail lists to end up in SPAM
can easily set up a filter whose sole action is to mark the item "not
spam". It's been a facility gmail provides long before the DMARC fiasco.

Settings->Filters->new filter->fill in criteria, probably the mail list
"from" ->" Never send it to Spam"

Keith Bierman
khbkhb at gmail.com
kbiermank AIM
303 997 2749

On Thu, Aug 28, 2014 at 8:36 AM, Barry S. Finkel <bsfinkel at att.net> wrote:

> On 8/28/2014 1:58 AM, Alan Meyer wrote:
>> Hi,
>> I recently set up a Ubuntu 14.04 server with Mailman 2.1.16.  It took a
>> while for me to configure because I needed to modify the setup procedure
>> from Ubuntu's instructions to what the mailman documentation suggested (no
>> use of the postfix-to-mailman.py script).
>> At any rate, my main goal has been to use mailman for an Indian Guides
>> group, which for years has just been an email list of about 50 people.
>> Mailman seemed like a great option to help ensure that all of the members
>> are accounted for in each email and to have archives available.
>> The problem that I'm having is that for some people on the list, they
>> don't reliably get their emails.  Mostly, this is from members that are on
>> gmail.com or hotmail.com or in some cases ymail.com.  The "lost" emails
>> get stuck in their spam filter, and in some cases hotmail users don't get
>> their emails at all.
>> I did some testing with a practice list I created (sending to my own set
>> of yahoo, gmail accounts), where my yahoo account was sending to members on
>> a gmail account.  I found no issue sending directly from yahoo to gmail,
>> but from yahoo->mail list->gmail got caught in the gmail's spam filter.
>> The gmail account spam folder would flag it and give me a note something to
>> the effect of "The sender's yahoo.com address could not be confirmed".
>> Furthermore, in the gmail account, I can mark the email as "Not SPAM" but
>> that doesn't help on subsequent emails.
>> As an experiment, I changed a few settings (from default Yes to No), but
>> these didn't seem to make a difference:
>> - Should messages from this mailing list include the RFC 2369 (i.e.
>> List-*) headers? Yes is highly recommended.
>> - Should postings include the List-Post: header?
>> - Should the Sender header be rewritten for this mailing list to avoid
>> stray bounces? Yes is recommended.
>> My search for SPAM hasn't helped (most SPAM issues are related to actual
>> SPAM getting in from user accounts).
>> Have others encountered this type of issue?  Are there any settings I can
>> use or steps I can take to help resolve this?
>> Thanks in advance.
>> Sincerely,
>> -Alan
> Alan, I think that you are experiencing DMARC problems.  You need the
> latest Mailman (2.1.18-1) to handle DMARC issues.  See the archives
> of this list from this past April onward to read about DMARC and
> Mailman.
> --Barry Finkel
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