Quoting Mail Admin <php@gurubase.com>: > Dear all, > > I am using IMP 3.1 on redhat platform. > > Is there any way I can force IMP to use external smtp server? > In /horde/config/horde.php you can set the Mailer to smtp. Then in /horde/imp/config/servers.php put in the smtp host you want. Have you tried that yet? Nate