change my_hdr in compose menu

[Alexander Rose <alexander.rose@xxxxxxxxxxxx>]

Hi all,

I am trying to change my From header when changing my smtp account:

macro compose "\e2" ':set sendmail="/sw/bin/msmtp -a xyz@xxxxxx"<enter>:set 
compose_format="xyz@xxxxxx -- Mutt: Compose [Approx. msg size: %l Atts: 
%a]%>-"<enter>:unmy_hdr "From"<enter>:my_hdr "From: xyz <xyz@xxxxxx>"<enter>' 
'use xyz@xxxxxxxxxxxxxx'

This does not work, it doesn't change my From header.

Any ideas, what's wrong?!


Thanks in advance
Alexander