How to filter/limit for syntactically invalid From: line?

[Ofer Inbar]

googly.negotiator862 at aceecat.org wrote:
> On Mon, Feb 03, 2025 at 09:08:46AM -0500, Ofer Inbar wrote:
> 
> > From: aaaaa.org" <no-reply at aaaaa.org>

> The first thing I'd try: ~f'^@$'

Oh interesting, that does work!  I thought the "@" in the index was
just a display artifact of some sort, but it looks like mutt really
does think the from string for these sorts of messages is literally
"@" so anchoring the regex works.

Weird behavior.
  -- Cos