On 1 Aug 2021, at 15:16, Bruce Horrocks via ntg-context wrote:

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On 31 Jul 2021, at 22:02, Henning Hraban Ramm via ntg-context wrote:

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Am 31.07.2021 um 21:19 schrieb Bruce Horrocks :

On 31 Jul 2021, at 14:56, Henning Hraban Ramm via ntg-context wrote:

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Ah, I didn’t recognize you mean this.

Since the mail goes through the mailing list software, the sender must not be the original sender any more – ntg.nl is not allowed to send emails for a different domain. Many securely configured mail servers reject “faked” sender addresses, as they should. Look up DANE etc.

That's all well and good but it obscures the sender in your mail client. If you look at the screen shot you can see that the older emails all display the sender's name in the list. Under the new system (just the topmost entry, shown selected) every email comes from "ntg-context@ntg.nl" which is completely useless when you want to visually scan down the list for a particular person.

It doesn’t make sense to argue about this, but it’s apparently a setting (or unchangeable behavior) of your Email app.

My Apple Mail 12.4 on Mojave shows the same message like attached (dark mode).

I'm on Big Sur and I don't get the "name via ntg-context" display for a single message that your screen clip shows, so it looks like there has been a change in behaviour of Apple's mail client as well.

Late reply, but for the benefit of anyone looking through the archive, I traced the cause of my problem to an entry in Contacts that had ntg-context@ntg.nl as the email address and no other details. Apple Mail decides to use this instead of the From: header when displaying the mailing list emails. — Bruce Horrocks Hampshire, UK