On Fri, 23 Mar 2012 21:41:12 +0800, 斟酌鵬兄 wrote: > I am setting up another exim in cygwin, referencing the configuration > file in debian, what does the variable $host_address refers to? It should be described in deep at the manual... Chapter 58 - Variable Index http://www.exim.org/exim-html-current/doc/html/spec_html/ch58.html Greetings, -- Camaleón