On 12/2/06, Zhiliang Hu hu@animalgenome.org wrote:
I googled but don't find much on this (what's the code "67" for?)
Look in /usr/include/sysexits.h or the equivalent on your operating system:
#define EX_NOUSER 67 /* addressee unknown */
I think formail is using this to indicate that it can't generate a reply header because the address in the From: line is empty, which is typical for bounces and other automated messages.