The mailing list for listmasters using Sympa

[address@concealed]

From what I can tell so far:
- The breakage happened a few years ago when we moved the install from a 
Postfix-based to Sendmail-based system
- Neither Sendmail nor Sympa are configured in any obvious way to remove 
Message-ID headers
- Sympa distributes messages with a new xxxxx@<Sympa-host> message ID, 
not the original one
- Neither the original nor the new ID are found in the archive - 
instead, one of the form address@concealed is found

Any ideas as to direction to take to diagnose?

On 2/9/16 3:30 PM, address@concealed wrote:
> It clearly coincides with a switch of servers and a move from Postfix 
> to Sendmail - need to figure out who's trashing the Message-ID and where.
>
> On 2/9/16 12:30 AM, Steve Shipway (via sympa-users Mailing List) wrote:
> > Off the top of my head, that sounds as if the Message-Id header is 
> > unavailable or incorrectly formatted.
> >
> > Do you have anything set up to strip this for any reason?  Or do you 
> > have something generating a very weird format of message ID?  That 
> > might cause it.
> >
> > Steve
> >
> > Steve Shipway
> > University of Auckland ITS
> > UNIX Systems Design Lead
> > address@concealed
> > Ph: +64 9 373 7599 ext 86487
> >
> >
> > ________________________________________
> > From: address@concealed 
> > [address@concealed] on behalf of 
> > address@concealed [address@concealed]
> > Sent: Tuesday, 9 February 2016 6:38 p.m.
> > To: address@concealed
> > Subject: [sympa-users] NO-ID-FOUND.mhonarc.org
> >
> > Running a late 6.0, for reasons I'm trying to address separately.
> >
> > Any ideas why my archives might be getting NO-ID-FOUND\.mhonarc\.org
> > message-IDs, and therefore not be retrievable?