define(`SMART_HOST',`mail.yourisp.net')dnl <--- Your ISP's mail server name goe
s here
MASQUERADE_AS(yourisp.net)dnl  <--- Your ISP's domain name goes here
FEATURE(`allmasquerade')dnl
FEATURE(`masquerade_envelope')dnl

   These   instruct   Sendmail   to  direct  all  outgoing  mail  through
   "mail.yourisp.net"  or  whatever  you  specify  as  your outgoing mail
   server.

   The  "masquerade_as"  setting  will  change  the sender envelope (MAIL
   FROM:  contents, also known as the Envelope Sender) in case your ISP's
   outgoing  server  denies  outbound  mail with different domains in the
   MAIL FROM: or Envelope Sender line.

