[Mailman-Users] Re: User receiving mail, but not subscribed

[Chromatest J. Pantsmaker]

I'd say export the digest subscriber list and then search within it for the
domain, or even the username portion of her email address.  My office has
email addresses on several domains of which all direct to my inbox, but
every email domain has the same username.  The digest subscribers list is
usually only a small percentage of all subscribers.

On Mon, Aug 16, 2021 at 10:59 PM Jim Dory  wrote:

> On 8/16/21 8:11 PM, Mark Sapiro wrote:
> >
> >
> > One thing you can do is enable VERP. Assuming this in Mailman 2.1 since
> this list is for Mailman 2.1, you enable VERP
> > by putting
> >
> > VERP_DELIVERY_INTERVAL = 1
> >
> > in mm_cfg.py. This will change the envelope sender (the bounces address)
> from
> >
> > listname-boun...@domain.com>
> >
> > to
> >
> > listname-bounces+user=example@domain.com>
> >
> > where replacing the '=' in user=example.com gives the recipient's
> address.
> >
> > The other thing you can do is just look at all the digest members of the
> list. If there aren't too many, you may be
> > able to figure out which it is. use Mailman's
> >
> > bin/list_members -d -f listname
> >
> > to get a list of digest members with their 'real name' if available.
> >
> > Otherwise, as you note, if you can get her to send you the raw message
> headers, you may be able to get the address
> > from the Received: headers.
>
>
> Great Mark, will try that VERP trick. She is out of the office for the
> rest of the week so will have to wait and see.
>
> There's over 1500 subscribers so probably best to search on her
> corporation's domain - that may return maybe around a
> couple dozen or so - rather than digest subscribers which are probably a
> ton.
>
> thanks, Jim
>
>
>
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[Mailman-Users] Re: User receiving mail, but not subscribed

[Christian Buser via Mailman-Users]

Hello Jim Dory. On Mon, 16 Aug 2021 21:57:29 -0800, you wrote:

> Great Mark, will try that VERP trick. She is out of the office for 
> the rest of the week so will have to wait and see.
> 
> There's over 1500 subscribers so probably best to search on her 
> corporation's domain - that may return maybe around a couple dozen or 
> so - rather than digest subscribers which are probably a ton.

I am not too sure about this. Here we have some internet providers who use more 
than one domain for their email addresses. You can "freely change" the part 
after the @ sign, and the mails are still delivered. 

The same may apply to corporations who do business under several names, or for 
companies that have been taken over by others.

Christian 

-- 
Christian Buser, Hohle Gasse 6, CH-5507 Mellingen (Switzerland)  
Hilfe fuer Strassenkinder in Ghana: https://www.chance-for-children.org
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[Mailman-Users] Re: User receiving mail, but not subscribed

[Jim Dory]

On 8/16/21 8:11 PM, Mark Sapiro wrote:



One thing you can do is enable VERP. Assuming this in Mailman 2.1 since this list is for Mailman 2.1, you enable VERP 
by putting


VERP_DELIVERY_INTERVAL = 1

in mm_cfg.py. This will change the envelope sender (the bounces address) from

listname-boun...@domain.com>

to

listname-bounces+user=example@domain.com>

where replacing the '=' in user=example.com gives the recipient's address.

The other thing you can do is just look at all the digest members of the list. If there aren't too many, you may be 
able to figure out which it is. use Mailman's


bin/list_members -d -f listname

to get a list of digest members with their 'real name' if available.

Otherwise, as you note, if you can get her to send you the raw message headers, you may be able to get the address 
from the Received: headers.



Great Mark, will try that VERP trick. She is out of the office for the rest of 
the week so will have to wait and see.

There's over 1500 subscribers so probably best to search on her corporation's domain - that may return maybe around a 
couple dozen or so - rather than digest subscribers which are probably a ton.


thanks, Jim



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[Mailman-Users] Re: User receiving mail, but not subscribed

[Mark Sapiro]

On 8/16/21 10:30 AM, Jim Dory wrote:


Usually the messages sent are from "name of subscriber 
via"listn...@domain.com. (She gets the digest which I don't so not sure 
that is different). But when she forwards me one of these digest 
messages, it is from: "Listname  on behalf 
of listname-requ...@domain.com "



This is a Microsoft mail client thing. Digests are sent From: 
listname-requ...@domain.com with envelope sender 
listname-boun...@domain.com, and what you see is what the mail client 
chooses to show you in this case.



And instead of the usual listn...@domain.com unsubscribe,archives,info 
link at the bottom of the message, it has ...


The digest footer can't contain any personalizations because digest 
can't be personalized, and is can't contain a link to the archived 
message because digests aren't archived (they contain messages which 
were archived, but the digest itself isn't)



One thing you can do is enable VERP. Assuming this in Mailman 2.1 since 
this list is for Mailman 2.1, you enable VERP by putting


VERP_DELIVERY_INTERVAL = 1

in mm_cfg.py. This will change the envelope sender (the bounces address) 
from


listname-boun...@domain.com>

to

listname-bounces+user=example@domain.com>

where replacing the '=' in user=example.com gives the recipient's address.

The other thing you can do is just look at all the digest members of the 
list. If there aren't too many, you may be able to figure out which it 
is. use Mailman's


bin/list_members -d -f listname

to get a list of digest members with their 'real name' if available.

Otherwise, as you note, if you can get her to send you the raw message 
headers, you may be able to get the address from the Received: headers.


--
Mark Sapiro The highway is for gamblers,
San Francisco Bay Area, Californiabetter use your sense - B. Dylan



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[Mailman-Users] Re: User receiving mail, but not subscribed

[Jim Dory]

On 8/16/21 11:10 AM, Carl Zwanzig wrote:

On 8/16/2021 10:30 AM, Jim Dory wrote:
I've asked her to run it by the IT department of her corporation, but thought I would ask here in case there is 
something I need to do instead. I thought that the "on behalf of listname-requ...@domain.com" was pretty unusual, or 
something I don't usually see anyway.


Sounds like a microsoft exchange/outlook thing- the "on behalf of" part. Could be they have an internal list that's 
subscribed to the MM list, or that the MM list member is a secretary/assistant of the final recipient.


If you can, the the full SMTP headers and look at the top/most-recent Received: 
lines; that'll show the handoff-

(the message I'm replying to)
Received: from mail.python.org (mail.python.org [188.166.95.178])
(using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits))
(No client certificate requested)
by host.hosting.service (Postfix) with ESMTPS id A1FA6487B1
for ; Mon, 16 Aug 2021 15:01:50 -0400 (EDT)

See who it's for in there.



Thanks for the reply. I had her forward the digest message to me, and it appears she did because the subject line says: 
FWD: listname Digest vol.  . She did add a bit of text to the forward explaining it was from her work email. So 
headers in the source view prior to her text just show received from her to me. After her little bit of text, it just 
has the From, Subject, To lines as one sees when receiving any message and then the digest text. So no headers to 
inspect. Perhaps if I could have her view the digest source and copy/paste it to me, that might be revealing. I'll see 
if she can do that. I'll have to google how to view source in MS Exchange.


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[Mailman-Users] Re: User receiving mail, but not subscribed

[Jim Dory]

On 8/16/21 11:34 AM, Bruce Johnson via Mailman-Users wrote:


When I’ve gotten these in the past it’s almost always because someone else’s 
email, or an old email address is getting forwarded to the recipient. I don’t 
think the 'on behalf of’ stuff is actually from an O365/Exchange system, but 
whatever that linkprotect link is.

(which link, btw, my campus network won’t let me load because it’s flagged as a 
malware source…so be careful)



I clicked on the link trusting my linux system would catch malware usually targeting windows, and it redirects to our MM 
list page. I'll make sure this person contacts her IT dept. to try and figure this out. Thanks for the reply!   /jim


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[Mailman-Users] Re: User receiving mail, but not subscribed

[Bruce Johnson via Mailman-Users]

On Aug 16, 2021, at 10:30 AM, Jim Dory 
mailto:ja...@dorydesign.com>> wrote:

I suspect this stems from something inside this local corporation, but I'll ask 
the question:

I have a person contacting me to remove her work email from our subscription of 
our local email list, but her email is not subscribed. Usually when this 
happens, I have them forward a list message to me and I can discover which 
email it is being sent to.

Usually the messages sent are from "name of subscriber 
via"listn...@domain.com. (She gets the digest which 
I don't so not sure that is different). But when she forwards me one of these 
digest messages, it is from: "Listname 
mailto:listname-boun...@domain.com>> on behalf of 
listname-requ...@domain.com 
mailto:listname-requ...@domain.com>>"

And instead of the usual listn...@domain.com 
unsubscribe,archives,info link at the bottom of the message, it has what is 
probably an internal security link by the IT system of 
https://linkprotect.cudasvc.com/url? 
...
 (with the actual link following - and redirects to our info page). This may 
not help, but include it to show they have some kind of system within the 
corporation.

When I’ve gotten these in the past it’s almost always because someone else’s 
email, or an old email address is getting forwarded to the recipient. I don’t 
think the 'on behalf of’ stuff is actually from an O365/Exchange system, but 
whatever that linkprotect link is.

(which link, btw, my campus network won’t let me load because it’s flagged as a 
malware source…so be careful)

--
Bruce Johnson
University of Arizona
College of Pharmacy
Information Technology Group

Institutions do not have opinions, merely customs

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[Mailman-Users] Re: User receiving mail, but not subscribed

[Carl Zwanzig]

On 8/16/2021 10:30 AM, Jim Dory wrote:
I've asked her to run it by the IT department of her corporation, but 
thought I would ask here in case there is something I need to do instead. I 
thought that the "on behalf of listname-requ...@domain.com" was pretty 
unusual, or something I don't usually see anyway.


Sounds like a microsoft exchange/outlook thing- the "on behalf of" part. 
Could be they have an internal list that's subscribed to the MM list, or 
that the MM list member is a secretary/assistant of the final recipient.


If you can, the the full SMTP headers and look at the top/most-recent 
Received: lines; that'll show the handoff-


(the message I'm replying to)
Received: from mail.python.org (mail.python.org [188.166.95.178])
(using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits))
(No client certificate requested)
by host.hosting.service (Postfix) with ESMTPS id A1FA6487B1
for ; Mon, 16 Aug 2021 15:01:50 -0400 (EDT)

See who it's for in there.

Later,

z!
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