[Mailman-Users] Re: [ext] Re: [EXTERNAL] Re: Barrage of bounce notifications

[Ralf Hildebrandt via Mailman-Users]

> > > These settings apply only to list posts, not to mail to the list-bounces
> > > address.
> >
> > But those can be disabled as well:
> > bounce_unrecognized_goes_to_list_owner => no
> > on the subpage "bounce"
> >
> 
> In this case then what happens when such a bounce arrives? MM2.1 discards
> it?

I think so
-- 
Ralf Hildebrandt
Charité - Universitätsmedizin Berlin
Geschäftsbereich IT | Abteilung Netzwerk

Campus Benjamin Franklin (CBF)
Haus I | 1. OG | Raum 105
Hindenburgdamm 30 | D-12203 Berlin

Tel. +49 30 450 570 155
ralf.hildebra...@charite.de
https://www.charite.de
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[Mailman-Users] Re: [ext] Re: [EXTERNAL] Re: Barrage of bounce notifications

[Odhiambo Washington]

On Fri, May 26, 2023 at 9:34 AM Ralf Hildebrandt via Mailman-Users <
mailman-users@python.org> wrote:

> * Mark Sapiro :
> > On 5/25/23 10:13 AM, Odhiambo Washington wrote:
> > > I think you need to change the list settings, hoping you have Admin
> rights:
> > >
> > > You need to change in Privacy options -> Sender Filters -> Action to
> take
> > > for postings from non-members for which no explicit action is defined =
> > > Discard.
> > > If you use 'Reject', you'll be sending back messages to spammers using
> > > non-deliverable addresses and that would lead to what you are seeing.
> > > I am just guessing that your list is set to 'Reject' instead of
> 'Discard'.
> >
> >
> > These settings apply only to list posts, not to mail to the list-bounces
> > address.
>
> But those can be disabled as well:
> bounce_unrecognized_goes_to_list_owner => no
> on the subpage "bounce"
>

In this case then what happens when such a bounce arrives? MM2.1 discards
it?

-- 
Best regards,
Odhiambo WASHINGTON,
Nairobi,KE
+254 7 3200 0004/+254 7 2274 3223
"Oh, the cruft.", egrep -v '^$|^.*#' ¯\_(ツ)_/¯ :-)
[How to ask smart questions:
http://www.catb.org/~esr/faqs/smart-questions.html]
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[Mailman-Users] Re: [ext] Re: [EXTERNAL] Re: Barrage of bounce notifications

[Ralf Hildebrandt via Mailman-Users]

* Mark Sapiro :
> On 5/25/23 10:13 AM, Odhiambo Washington wrote:
> > I think you need to change the list settings, hoping you have Admin rights:
> > 
> > You need to change in Privacy options -> Sender Filters -> Action to take
> > for postings from non-members for which no explicit action is defined =
> > Discard.
> > If you use 'Reject', you'll be sending back messages to spammers using
> > non-deliverable addresses and that would lead to what you are seeing.
> > I am just guessing that your list is set to 'Reject' instead of 'Discard'.
> 
> 
> These settings apply only to list posts, not to mail to the list-bounces
> address.

But those can be disabled as well:
bounce_unrecognized_goes_to_list_owner => no
on the subpage "bounce"

-- 
Ralf Hildebrandt
Charité - Universitätsmedizin Berlin
Geschäftsbereich IT | Abteilung Netzwerk

Campus Benjamin Franklin (CBF)
Haus I | 1. OG | Raum 105
Hindenburgdamm 30 | D-12203 Berlin

Tel. +49 30 450 570 155
ralf.hildebra...@charite.de
https://www.charite.de
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[Mailman-Users] Re: [EXTERNAL] Re: Barrage of bounce notifications

[Mark Sapiro]

On 5/25/23 10:13 AM, Odhiambo Washington wrote:

I think you need to change the list settings, hoping you have Admin rights:

You need to change in Privacy options -> Sender Filters -> Action to take
for postings from non-members for which no explicit action is defined =
Discard.
If you use 'Reject', you'll be sending back messages to spammers using
non-deliverable addresses and that would lead to what you are seeing.
I am just guessing that your list is set to 'Reject' instead of 'Discard'.



These settings apply only to list posts, not to mail to the list-bounces 
address.


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

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[Mailman-Users] Re: [EXTERNAL] Re: Barrage of bounce notifications

[Mark Sapiro]

On 5/25/23 9:55 AM, Krone, Elizabeth C via Mailman-Users wrote:

Hello,

Here is more information:

   *   We are on Mailman version 2.1.39
   *   I received over 300 emails from "Mailman-bounces" yesterday
   *   They seem to have slowed down today
   *   These are the type of spam emails I that are being received:

...

***SPAM*** Hi there my great pen-friend,


So it appears you have some spam filtering. Mailman can filter list 
posts based on a match to '***SPAM***' in the Subject, but this won't 
apply to mail to the  -bounces address.




If there is a different Lsoft group I should be asking questions to, can 
someone point me in the correct direction? Apologies for posting to the wring 
group!



Mailman-users@python.org is the  correct list. Barry Finkel was not 
saying you should post to  Lsoft. He was saying that `listserv` is a 
registered trademark of Lsoft and should not be used generically to 
refer to Mailman lists. Again, see 
https://wiki.list.org/DOC/Mailman%20is%20not%20Listserv


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

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[Mailman-Users] Re: Barrage of bounce notifications

[Mark Sapiro]

On 5/24/23 10:29 AM, Krone, Elizabeth C via Mailman-Users wrote:

Good afternoon all,

I manage a few listservs (maintaining members and tending pending posts) and today I have 
received almost 80 separate "Uncaught bounce notification" emails for one of 
the lists. There are rarely any for this list and I would like to know if there is 
something I can do to stop the spam. I have received 5 more while typing this email. I am 
not a tech person but any suggestions are welcome.



These are almost certainly spam sent to the list-bounces address as 
opposed to real bounces that are not recognized.


You need to install some kind of spam filtering in the MTA ahead of Mailman.

As Barry Finkel says, see 
https://wiki.list.org/DOC/Mailman%20is%20not%20Listserv


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

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[Mailman-Users] Re: Question about content filtering in message body

[Scott High]

Many thanks to all who replied on this! Once y'all pointed me in the right 
direction, I was able to go back up the chain a bit and find what I needed in 
SpamAssassin to block the particular spammer in question based on his Bitcoin. 
Thanks again!


From: Ethan Lewis 
Sent: Thursday, May 25, 2023 5:00:40 AM
To: mailman-users@python.org
Subject: [Mailman-Users] Re: Question about content filtering in message body

One popular approach for text filtering is to create a list of "bad words" or 
inappropriate terms and check if any of those words appear in the message body. 
Here's a high-level overview of how you can implement this:

Define a list of inappropriate words or phrases that you want to filter. This 
list can be as extensive as you need it to be, and you can include words 
related to profanity, offensive language, or any other content you wish to 
block.

Tokenize the message body: Split the text into individual words or tokens. The 
exact method for tokenization depends on the programming language or library 
you are using. Common options include using regular expressions or built-in 
string manipulation functions.

Compare the tokens with the list of inappropriate words: Iterate over the 
tokens in the message body and check if each token appears in your list of 
inappropriate words. You may need to consider case sensitivity and handle 
variations of words (e.g., plural forms, alternative spellings) depending on 
your requirements.

Take action based on the results: If you find any matches between the tokens 
and the inappropriate word list, you can decide how to handle those messages. 
Options include flagging the message for manual review, replacing inappropriate 
words with asterisks or other symbols, or rejecting the message altogether.

Please note that implementing a content filtering system involves some level of 
customization based on your specific needs and the programming language or 
platform you are working with. There are also third-party services and 
libraries available that provide more advanced text filtering capabilities, 
such as natural language processing (NLP) algorithms or machine learning 
models, which can help improve the accuracy of the filtering process.
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[Mailman-Users] Re: [EXTERNAL] Re: Barrage of bounce notifications

[Odhiambo Washington]

I think you need to change the list settings, hoping you have Admin rights:

You need to change in Privacy options -> Sender Filters -> Action to take
for postings from non-members for which no explicit action is defined =
Discard.
If you use 'Reject', you'll be sending back messages to spammers using
non-deliverable addresses and that would lead to what you are seeing.
I am just guessing that your list is set to 'Reject' instead of 'Discard'.


On Thu, May 25, 2023 at 8:02 PM Krone, Elizabeth C via Mailman-Users <
mailman-users@python.org> wrote:

> Hello,
>
> Here is more information:
>
>   *   We are on Mailman version 2.1.39
>   *   I received over 300 emails from "Mailman-bounces" yesterday
>   *   They seem to have slowed down today
>   *   These are the type of spam emails I that are being received:
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
> ***SPAM*** Hi there my great pen-friend,
> SL
> Smilesx Lonelyeo 
> 
> To:
>
>   *
> ecdu...@hotmail.com
>
> Thu 5/25/2023 1:29 AM
>
> If there is a different Lsoft group I should be asking questions to, can
> someone point me in the correct direction? Apologies for posting to the
> wring group!
>
> Thank you!!
>
>
> 
> From: Barry S. Finkel 
> Sent: Thursday, May 25, 2023 12:28 PM
> To: mailman-users@python.org 
> Subject: [EXTERNAL] [Mailman-Users] Re: Barrage of bounce notifications
>
>
>
>  This email has been received from outside of DOI - Use caution before
> clicking on links, opening attachments, or responding.
>
>
>
> On 5/24/2023 12:29 PM, Krone, Elizabeth C via Mailman-Users wrote:
> > Good afternoon all,
> >
> > I manage a few listservs (maintaining members and tending pending posts)
> and today I have received almost 80 separate "Uncaught bounce notification"
> emails for one of the lists. There are rarely any for this list and I would
> like to know if there is something I can do to stop the spam. I have
> received 5 more while typing this email. I am not a tech person but any
> suggestions are welcome.
> >
> > Thank you!
> >
> > Elizabeth
> >
> >
> > --
> > Mailman-Users mailing list -- mailman-users@python.org
> > To unsubscribe send an email to mailman-users-le...@python.org
> >
> https://gcc02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fmail.python.org%2Fmailman3%2Flists%2Fmailman-users.python.org%2F&data=05%7C01%7Celizabeth_krone%40fws.gov%7C5202637e81774e99a40408db5d3d6485%7C0693b5ba4b184d7b9341f32f400a5494%7C0%7C0%7C638206290487395104%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=eKr7%2B5HHdfo7uqLDhbqz36HtX6xpwchAIeyobENthkI%3D&reserved=0
> 
> > Mailman FAQ:
> https://gcc02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwiki.list.org%2Fx%2FAgA3&data=05%7C01%7Celizabeth_krone%40fws.gov%7C5202637e81774e99a40408db5d3d6485%7C0693b5ba4b184d7b9341f32f400a5494%7C0%7C0%7C638206290487395104%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=WWF5MaH2o7%2BGZx6YoXSRDTjVr%2BPzHr%2FVtekB9jPpEpo%3D&reserved=0
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> 
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> 
> > Member address: bsfin...@att.net
>
>
> Mailman is NOT listserv.  Listserv is a different mailing list
> management software from Lsoft.
>
> --Barry Finkel
> --
> Mailman-Users mailing list -- mailman-users@python.or

[Mailman-Users] Re: [EXTERNAL] Re: Barrage of bounce notifications

[Krone, Elizabeth C via Mailman-Users]

Hello,

Here is more information:

  *   We are on Mailman version 2.1.39
  *   I received over 300 emails from "Mailman-bounces" yesterday
  *   They seem to have slowed down today
  *   These are the type of spam emails I that are being received:


















***SPAM*** Hi there my great pen-friend,
SL
Smilesx Lonelyeo 

To:

  *
ecdu...@hotmail.com

Thu 5/25/2023 1:29 AM

If there is a different Lsoft group I should be asking questions to, can 
someone point me in the correct direction? Apologies for posting to the wring 
group!

Thank you!!



From: Barry S. Finkel 
Sent: Thursday, May 25, 2023 12:28 PM
To: mailman-users@python.org 
Subject: [EXTERNAL] [Mailman-Users] Re: Barrage of bounce notifications



 This email has been received from outside of DOI - Use caution before clicking 
on links, opening attachments, or responding.



On 5/24/2023 12:29 PM, Krone, Elizabeth C via Mailman-Users wrote:
> Good afternoon all,
>
> I manage a few listservs (maintaining members and tending pending posts) and 
> today I have received almost 80 separate "Uncaught bounce notification" 
> emails for one of the lists. There are rarely any for this list and I would 
> like to know if there is something I can do to stop the spam. I have received 
> 5 more while typing this email. I am not a tech person but any suggestions 
> are welcome.
>
> Thank you!
>
> Elizabeth
>
>
> --
> Mailman-Users mailing list -- mailman-users@python.org
> To unsubscribe send an email to mailman-users-le...@python.org
> https://gcc02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fmail.python.org%2Fmailman3%2Flists%2Fmailman-users.python.org%2F&data=05%7C01%7Celizabeth_krone%40fws.gov%7C5202637e81774e99a40408db5d3d6485%7C0693b5ba4b184d7b9341f32f400a5494%7C0%7C0%7C638206290487395104%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=eKr7%2B5HHdfo7uqLDhbqz36HtX6xpwchAIeyobENthkI%3D&reserved=0
> Mailman FAQ: 
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>  
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> Member address: bsfin...@att.net


Mailman is NOT listserv.  Listserv is a different mailing list
management software from Lsoft.

--Barry Finkel
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[Mailman-Users] Re: Barrage of bounce notifications

[Barry S. Finkel]

On 5/24/2023 12:29 PM, Krone, Elizabeth C via Mailman-Users wrote:

Good afternoon all,

I manage a few listservs (maintaining members and tending pending posts) and today I have 
received almost 80 separate "Uncaught bounce notification" emails for one of 
the lists. There are rarely any for this list and I would like to know if there is 
something I can do to stop the spam. I have received 5 more while typing this email. I am 
not a tech person but any suggestions are welcome.

Thank you!

Elizabeth


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Mailman is NOT listserv.  Listserv is a different mailing list
management software from Lsoft.

--Barry Finkel
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[Mailman-Users] Re: Barrage of bounce notifications

[Odhiambo Washington]

What is the content of the emails you've received? I mean at least give us
a sample.
You can obfuscate email addresses if you want, but not the actual error.

On Thu, May 25, 2023 at 5:10 PM Krone, Elizabeth C via Mailman-Users <
mailman-users@python.org> wrote:

> Good afternoon all,
>
> I manage a few listservs (maintaining members and tending pending posts)
> and today I have received almost 80 separate "Uncaught bounce notification"
> emails for one of the lists. There are rarely any for this list and I would
> like to know if there is something I can do to stop the spam. I have
> received 5 more while typing this email. I am not a tech person but any
> suggestions are welcome.
>
> Thank you!
>
> Elizabeth
>
>
> --
> Mailman-Users mailing list -- mailman-users@python.org
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> Member address: odhia...@gmail.com
>


-- 
Best regards,
Odhiambo WASHINGTON,
Nairobi,KE
+254 7 3200 0004/+254 7 2274 3223
"Oh, the cruft.", egrep -v '^$|^.*#' ¯\_(ツ)_/¯ :-)
[How to ask smart questions:
http://www.catb.org/~esr/faqs/smart-questions.html]
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[Mailman-Users] Re: Question about content filtering in message body

[Ethan Lewis]

One popular approach for text filtering is to create a list of "bad words" or 
inappropriate terms and check if any of those words appear in the message body. 
Here's a high-level overview of how you can implement this:

Define a list of inappropriate words or phrases that you want to filter. This 
list can be as extensive as you need it to be, and you can include words 
related to profanity, offensive language, or any other content you wish to 
block.

Tokenize the message body: Split the text into individual words or tokens. The 
exact method for tokenization depends on the programming language or library 
you are using. Common options include using regular expressions or built-in 
string manipulation functions.

Compare the tokens with the list of inappropriate words: Iterate over the 
tokens in the message body and check if each token appears in your list of 
inappropriate words. You may need to consider case sensitivity and handle 
variations of words (e.g., plural forms, alternative spellings) depending on 
your requirements.

Take action based on the results: If you find any matches between the tokens 
and the inappropriate word list, you can decide how to handle those messages. 
Options include flagging the message for manual review, replacing inappropriate 
words with asterisks or other symbols, or rejecting the message altogether.

Please note that implementing a content filtering system involves some level of 
customization based on your specific needs and the programming language or 
platform you are working with. There are also third-party services and 
libraries available that provide more advanced text filtering capabilities, 
such as natural language processing (NLP) algorithms or machine learning 
models, which can help improve the accuracy of the filtering process.
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[Mailman-Users] Barrage of bounce notifications

[Krone, Elizabeth C via Mailman-Users]

Good afternoon all,

I manage a few listservs (maintaining members and tending pending posts) and 
today I have received almost 80 separate "Uncaught bounce notification" emails 
for one of the lists. There are rarely any for this list and I would like to 
know if there is something I can do to stop the spam. I have received 5 more 
while typing this email. I am not a tech person but any suggestions are welcome.

Thank you!

Elizabeth


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