gating mailman <-> inn2, message duplication

[Laurens Kils-Hütten]

Am Fri, Apr 10, 2026 at 02:07:58PM +0200 schrieb Martin Burmester:
> Hi Julien
> 
> Am 07.04.2026 um 19:26 schrieb Julien ÉLIE:
> > Hi Laurens,
> > 
> > > I'd like to ask for help with this problem I'm having with setting
> > > up gating between a mailing list and a local newsgroup.
> > > 
> > > The symptom is this: when I send messages from a subscribed email
> > > account to the list, I get a duplicate back to the list with a notable
> > > lag of about 1 to 3 seconds.
> > 
> > Did you manage to solve your issue, following the discussion which took
> > place in news.software.nntp?

Hi Julien,

thanks for asking, so yes it is working now and I disabled the news2mail
funcionality in inn2, no relying on mailman3 only to manage the gating.
Works nicely!

> > 
> > Do not hesitate to tell us how to improve the manual page of news2mail
> > or other programs, as well as the comments in the default configuration
> > files (like newsfeeds) to facilitate the configuration for future users.
> > 
> > 
> > > # this is in /etc/news/newsfeeds:
> > > 
> > > news2mail!:!*:Ac,Tc,Wn*:/usr/lib/news/bin/news2mail
> > > test-grenzland-club/grenzland.club:!*,grenzland.test:Ap,Tm:news2mail!
> > 
> > Should it be mentioned in the newsfeeds sample file that this is not
> > necessary as Mailman can be configured to pull the news itself?  Is it
> > what you finally did?  And if that is the case, what needs to be
> > configured in INN to make gatewaying work with current version of
> > Mailman 3?

I think my setup shows that no special configuration is needed for inn2.
I commented out the configuration shown above.

It would still be intersting if there would be a theoretical option to
combine mailman with news2mail, even if it's not needed. 

> I dont know what he did, but yes, using news2mail with Mailman should be
> considered harmfull. Mailman (2 and 3) has its own facility to check for new
> messages via nnrp and send them to mailing list subscribers.
> 
> There is another supported setup, that is makeing the group a moderated
> group and setting the mailman list address and having everything go through
> mailman. In this setup mailman can also be used as a moderation interface. I
> have only tested this with mailman 2 not with mailman 3.

Interesting, but the default setup is really all I need.

Thanks all, 

Laurens


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