[Mailman-Users] Apple and Microsoft emails bounced

[jan]

Routinely, email posts from Microsoft (.hotmail, .live, .me) and now more 
recently Apple (.icloud and .mac) are being bounced en masse.

Is there something we or our host can do to stop this from happening?

Appreciate any advice.

Thanks
--
Mailman-Users mailing list -- mailman-users@python.org
To unsubscribe send an email to mailman-users-le...@python.org
https://mail.python.org/mailman3/lists/mailman-users.python.org/
Mailman FAQ: http://wiki.list.org/x/AgA3
Security Policy: http://wiki.list.org/x/QIA9
Searchable Archives: https://www.mail-archive.com/mailman-users@python.org/
https://mail.python.org/archives/list/mailman-users@python.org/
Member address: arch...@jab.org

[Mailman-Users] Re: Apple and Microsoft emails bounced

[Mark Sapiro]

On 3/6/24 11:59 AM, j...@janalexander.ca wrote:

Routinely, email posts from Microsoft (.hotmail, .live, .me) and now more 
recently Apple (.icloud and .mac) are being bounced en masse.



What are the reasons for these bounces. If you are not currently seeing 
bounce DSNs set the list's Bounce processing -> 
bounce_notify_owner_on_disable setting to Yes and if available, also set 
bounce_notify_owner_on_bounce_increment.




Is there something we or our host can do to stop this from happening?


At a minimum, assuming Mailman >= 2.1.18, set Privacy options... -> 
dmarc_moderation_action to Munge From and 
dmarc_quarantine_moderation_action to Yes. See 
.


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

--
Mailman-Users mailing list -- mailman-users@python.org
To unsubscribe send an email to mailman-users-le...@python.org
https://mail.python.org/mailman3/lists/mailman-users.python.org/
Mailman FAQ: http://wiki.list.org/x/AgA3
Security Policy: http://wiki.list.org/x/QIA9
Searchable Archives: https://www.mail-archive.com/mailman-users@python.org/
   https://mail.python.org/archives/list/mailman-users@python.org/
Member address: arch...@jab.org

[Mailman-Users] Re: Apple and Microsoft emails bounced

[jan]

We're using 2.1.39 and set to Munge From and quarantine moderation action is 
set to Yes.

We've had this problem all along, since we took it over in 2019. It has always 
been the Microsoft products, only this time, the Apple products. Brian 
Carpenter, bless his soul, used to fix it up for us. We understood from Brian 
that Microsoft routinely blocks their emails from receiving what appears to 
them as bulk emails. We're a very small group.

But, maybe it's not that. Jan tells me she gets the notices that (icloud ad 
mac) emails are blocked (bounced) when no one has sent anything. It's not 
triggered by a send event. Can you explain that to me?

EMWD, the Mailman host in California, said our DKIM setting was wrong and sent 
a new one which we've put in the DNS records.

Curiouser,
Cathryn
--
Mailman-Users mailing list -- mailman-users@python.org
To unsubscribe send an email to mailman-users-le...@python.org
https://mail.python.org/mailman3/lists/mailman-users.python.org/
Mailman FAQ: http://wiki.list.org/x/AgA3
Security Policy: http://wiki.list.org/x/QIA9
Searchable Archives: https://www.mail-archive.com/mailman-users@python.org/
https://mail.python.org/archives/list/mailman-users@python.org/
Member address: arch...@mail-archive.com

[Mailman-Users] Re: Apple and Microsoft emails bounced

[Mark Sapiro]

On 3/7/24 3:24 PM, j...@janalexander.ca wrote:

We're using 2.1.39 and set to Munge From and quarantine moderation action is 
set to Yes.



OK.



But, maybe it's not that. Jan tells me she gets the notices that (icloud ad 
mac) emails are blocked (bounced) when no one has sent anything. It's not 
triggered by a send event. Can you explain that to me?



What is the content of these notices? There are many possible reasons 
why DSNs might not be received until possibly days after a message is 
sent. Without seeing the notices and possibly the mail logs from the 
host, I won't speculate.




EMWD, the Mailman host in California, said our DKIM setting was wrong and sent 
a new one which we've put in the DNS records.


And has that helped? DKIM signing is important and must be properly 
configured, but that's between you and EMWD. We can't help with that. 
When Brain was still alive, EMWD was extremely responsive to these 
issues, but I don't know what their current support situation is.


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

--
Mailman-Users mailing list -- mailman-users@python.org
To unsubscribe send an email to mailman-users-le...@python.org
https://mail.python.org/mailman3/lists/mailman-users.python.org/
Mailman FAQ: http://wiki.list.org/x/AgA3
Security Policy: http://wiki.list.org/x/QIA9
Searchable Archives: https://www.mail-archive.com/mailman-users@python.org/
   https://mail.python.org/archives/list/mailman-users@python.org/
Member address: arch...@mail-archive.com