Hello Shawn, > -----Ursprüngliche Nachricht----- > Von: Shawn Heisey <apa...@elyograg.org> > Gesendet: Freitag, 15. September 2023 03:56 > An: Tomcat Users List <users@tomcat.apache.org> > Betreff: Re: AW: HSTS on 401 / error pages > > On 9/14/23 08:03, Thomas Hoffmann (Speed4Trade GmbH) wrote: > > Sorry, I thought removing all content and subject is sufficient. Maybe > > the message-id header is used internally(?) > > TL;DR: technical details about message threading. Not about Tomcat. > > This is what happens when you reply to an existing message for a new topic > rather than starting a brand new message: > > https://www.dropbox.com/scl/fi/6f6xqoj9ndznr1pwnluuk/bad-threading- > tomcat-user.png?rlkey=q6385e4fqyd2ngp97qgj4bj3y&dl=0 > > There are headers in the message that facilitate threading that you can't > normally see. These are the relevant headers in the message you replied to: > > References: <9ebb0e5d-1794-92f6-9c9f- > 47a235a4e...@touchtonecorp.com> > <057e2b5435244011898683f843170...@speed4trade.com> > <5f704d72-03ea-457c-8d44-792ecda97...@elyograg.org> > <80c5af8d-d267-581a-0877-687413cd6...@apache.org> > <4011ac44-d7b8-3fa1-5676-34cbd9207...@christopherschultz.net> > <c668d2c4-f475-5303-9cba-802edd438...@touchtonecorp.com> > In-Reply-To: <c668d2c4-f475-5303-9cba- > 802edd438...@touchtonecorp.com> > Message-ID: > > <CANQXucfXnysDtn1kmK320AF6uYjrp=nCnmCUVsjbK9zvELan1Q@mail.gmail > .com> > > And these are the relevant headers in your reply: > > Message-ID: <62e04634351c4c62ae75848a77dac...@speed4trade.com> > References: <9ebb0e5d-1794-92f6-9c9f- > 47a235a4e...@touchtonecorp.com> > <057e2b5435244011898683f843170...@speed4trade.com> > <5f704d72-03ea-457c-8d44-792ecda97...@elyograg.org> > <80c5af8d-d267-581a-0877-687413cd6...@apache.org> > <4011ac44-d7b8-3fa1-5676-34cbd9207...@christopherschultz.net> > <c668d2c4-f475-5303-9cba-802edd438...@touchtonecorp.com> > > <CANQXucfXnysDtn1kmK320AF6uYjrp=nCnmCUVsjbK9zvELan1Q@mail.gmail > .com> > In-Reply-To: > > <CANQXucfXnysDtn1kmK320AF6uYjrp=nCnmCUVsjbK9zvELan1Q@mail.gmail > .com> > > While some mail clients will create threads on the message subject, these > headers are the strictly correct way to show threads. We also see messages > where people send a reply to a thread by writing a new message with the > same subject. Clients that do threading properly will not show those > messages as part of the thread. > > Thanks, > Shawn > >
Thanks for your explanation and I see that pressing "reply" causes issues. I already assumed that the mail headers are related to this. I will stick to "new message" in future! Have a nice day! Thomas
