"from some QMail doc from somewhere:"
> Qmail takes explicit routes from the file
> /var/qmail/control/smtproutes. If your ISP's mail host is
> smtp.yourisp.net, put in it a line containing
> :smtp.yourisp.net
>
> (The part before the colon is the domain to route through that
> server, with nothing before the colon meaning to make it the
> default.)
E-Smith uses the QMail Mail Transfer Agent (MTA) so for addition information try:
http://www.qmail.org/For other people reading this post, with E-smith 4.0bx has an option to set the default route from the web interface.
> E-smith server can deliver outgoing messages directly to their
> destination (recommended in most cases) or can deliver them
> via your Internet provider's SMTP server (recommended if you
> have an unreliable Internet connection or are using a
> residential Internet service). If using your Internet
> provider's SMTP server, specify its hostname or IP address
> below. Otherwise leave this field blank.