Posting netiquette: HTML: e-mail clients

On 27/06/2022 00:07, Ralf Mardorf wrote:

> …
>
> https://lists.freebsd.org/archives/freebsd-questions/2022-June/001448.html
>
> It does exactly look this way, when displayed by Claws on my my machine and … The reply starts below a broken signature separator followed by a quoted signature. The broken …

OT (please don't reply here) I have not yet figured out how to get Claws 
to work with OAuth2 for my Google account, so I can't properly compare.

Free from breakage, viewed with Thunderbird 91.10.0_1 on FreeBSD 
14.0-CURRENT: