Dynamic macro

[Ben Gladwell <bgladwell@xxxxxxxxxxxxxx>]

I'm new to this list - thanks for taking the time to keep this up and
running.

I get around 100 emails a day from the servers that I manage. Procmail
dumps them all into the same mbox, which is the way I like it. I want to
create a macro that creates a limit based on the host of the sender of
the current email in the index - in my case its the name of the server
that emailed me. This way, I could quickly see all the emails from each
server.

So, if the current email iss from root@xxxxxxxxxxxxxxxxxxxx i'd like a
limit like:
~L server

The best I can come with is something like:

macro index <esc>s "<enter-command>unset wait_key\n<pipe-message>formail -x 
From:|sed -e 's/\w\+\@\(\w\+\)\..*/\1/'>/tmp/muttlimit\n<enter-command>set 
wait_key\n<limit>~L `cat /tmp/muttlimit`<enter>" "Change limit"

But this doesn't work.

Any thoughts?

Thanks