# Mailing list mode no longer groups properly **URL:** \ **Category:** Site Feedback\ **Created:** [December 7, 2021, 2:40pm UTC](https://racket.discourse.group/t/mailing-list-mode-no-longer-groups-properly/371 "2021-12-07T14:40:09Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![jryans](https://yyz2.discourse-cdn.com/free1/user_avatar/racket.discourse.group/jryans/32/31_2.png) [@jryans](https://racket.discourse.group/u/jryans)\ **Post date:** [December 7, 2021, 2:40pm UTC](https://racket.discourse.group/t/mailing-list-mode-no-longer-groups-properly/371/1 "2021-12-07T14:40:09Z")
I have been happily using the mailing list mode since it was enabled a few weeks back. However, something seems to have changed on or around Dec 6th (yesterday) such that my mail client is now acting as if each message in a thread is its own separate thread, which makes it much harder to follow the context of a conversation. Is anyone else seeing this behaviour change? If yes, were any configuration changes made to the Discourse instance email setup in the last few days? If no one else is seeing this, it could be a local issue with my mail client... 😅 ---
**Author:** ![jryans](https://yyz2.discourse-cdn.com/free1/user_avatar/racket.discourse.group/jryans/32/31_2.png) [@jryans](https://racket.discourse.group/u/jryans)\ **Post date:** [December 7, 2021, 2:48pm UTC](https://racket.discourse.group/t/mailing-list-mode-no-longer-groups-properly/371/2 "2021-12-07T14:48:28Z")
Ah, it looks like the problematic messages are using nonsensical `Message-ID` headers: ```scheme Date: Tue, 07 Dec 2021 08:09:36 +0000 From: "Foo via Racket Discussions" Message-ID: Subject: [Racket Discussions] [Questions & Answers] Lazy, yet opportunistic streams List-ID: Racket Discussions | Questions & Answers List-Archive: https://racket.discourse.group/t/lazy-yet-opportunistic-streams/369 Feedback-ID: racket:mailing_list:discoursemail ``` The `Message-ID` on this one references LLVM's Discourse, while all the other headers are correct... I suppose this would need to be reported upstream to Discourse somehow. ---
**Author:** ![jryans](https://yyz2.discourse-cdn.com/free1/user_avatar/racket.discourse.group/jryans/32/31_2.png) [@jryans](https://racket.discourse.group/u/jryans)\ **Post date:** [December 7, 2021, 3:03pm UTC](https://racket.discourse.group/t/mailing-list-mode-no-longer-groups-properly/371/3 "2021-12-07T15:03:10Z")
I have [started a thread upstream](https://meta.discourse.org/t/mailing-list-mode-for-discourse-group-instances-no-longer-threads-properly/211367) about this. ---
**Author:** ![benknoble](https://yyz2.discourse-cdn.com/free1/user_avatar/racket.discourse.group/benknoble/32/16_2.png) [@benknoble](https://racket.discourse.group/u/benknoble)\ **Post date:** [December 7, 2021, 3:21pm UTC](https://racket.discourse.group/t/mailing-list-mode-no-longer-groups-properly/371/4 "2021-12-07T15:21:37Z")
I've been having this issue too, but I only recently enabled Mailing list mode, so I assumed it was intentional/the default/correct (I think the option says "Send me an email for each new message" or something similar). [This message didn't send from my email, so copied/pasted, but now time to investigate that. Anyone else use GMail to reply to messages here? Update: I need to make sure GMail replies from ben.knoble+racket, since that's the email I used here.] ---
**Author:** ![jryans](https://yyz2.discourse-cdn.com/free1/user_avatar/racket.discourse.group/jryans/32/31_2.png) [@jryans](https://racket.discourse.group/u/jryans)\ **Post date:** [December 8, 2021, 9:47am UTC](https://racket.discourse.group/t/mailing-list-mode-no-longer-groups-properly/371/5 "2021-12-08T09:47:39Z")
Threading for mailing list mode has now been fixed upstream. 🎉 ---
**Author:** ![spdegabrielle](https://yyz2.discourse-cdn.com/free1/user_avatar/racket.discourse.group/spdegabrielle/32/95_2.png) [@spdegabrielle](https://racket.discourse.group/u/spdegabrielle)\ **Post date:** [December 8, 2021, 12:33pm UTC](https://racket.discourse.group/t/mailing-list-mode-no-longer-groups-properly/371/6 "2021-12-08T12:33:25Z")
That is good news, but I believe there will be a slight delay as the hosted discourse instances get updates every few weeks. S. ---
**Author:** ![jbclements](https://yyz2.discourse-cdn.com/free1/user_avatar/racket.discourse.group/jbclements/32/11_2.png) [@jbclements](https://racket.discourse.group/u/jbclements)\ **Post date:** [December 8, 2021, 9:17pm UTC](https://racket.discourse.group/t/mailing-list-mode-no-longer-groups-properly/371/7 "2021-12-08T21:17:58Z")
Golly! That was fast.