On Sat, 2006-04-15 at 12:56 -0500, Gregory P. Ennis wrote: > List, > > I am trying to use FC5 for a gateway machine with an external eth0 > (XXX.XXX.XXX.XXX) and internal eth1 (10.0.0.135). I am having some > difficulty setting up sendmail. > > I have installed essentially the same sendmail.mc that I have used with > an FC4 gateway, but the FC5 system does not appear to be recognizing > localhost properly. > > For instance when I "telnet localhost 25" I connect to sendmail, but > when I try to send a command like HELP I get a response "550 5.0.0 > Access denied" or when I try to use "mail -v -s 'Test' root" I receive > "550 5.0.0 Access denied". > > Surprisingly, when I telnet 10.0.0.135 25 (from the local machine) I > connect to sendmail and am able to manually communicate with sendmail > and even send a message. When I "telnet (XXX.XXX.XXX.XXX) 25" (from an > external source) I am able to connect to sendmail and send a piece of > mail manually. > > If my sendmail.mc, or host files are faulty I can not find the error. > Does anyone know if this is a bug related to FC5, sendmail, and > localhost? > > Greg Ennis > After a Bunch of goggle searches I found the problem, and thought I would post it here to make sure the thread is complete. I had an entry in the host.deny file of ALL:ALL which excluded localhost permissions to use sendmail. I am not sure why this has occurred on FC5 but not FC4, but at least the problem is now resolved. Greg