telnet on local LAN question

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Greetings

I am trying to figure out how to get communication between my F14 boxes 
on a local wired LAN. The best test case I can come up with to prove 
that I don't know what I am doing wrong is telnet.

Each machine has a /etc/hosts looking like (where <name> is the machine 
name and <other> is any other machine:
+++
127.0.0.1 <name>    localhost.localdomain    localhost 
<name>.localdomain    localhost4
::1 <name>    localhost6.localdomain6    localhost6 <name>.localdomain

192.168.2.10 <other1>.localdomain <other1>
192.168.2.11 <other2>.localdomain <other2>
192.168.2.12 <other3>.localdomain <other3>
+++

For the other machines, its name is removed in the 192.168.10.x list and 
192.168.2.13 <name>.localdomain <name> is added

Each machines has a /etc/sysconfig/network of:
+++
NETWORKING=yes
HOSTNAME=<name>.localdomain
NTPSERVERARGS=iburst
+++

I didn't see any reference to <name> or <otherX> in 
/etc/sysconfig/network-scripts/ifcfg-eth0, so I am not including it ... 
if there should be something, I'd love to know! I can't think of any 
other place for <otherX> or <otherX>.localdomain, but that's out of 
ignorance as I haven't encountered this sort of problem before.

The splash screen for all machines is <name>.localdomain. The command 
hostname returns <name>.localdomain.

Ping works great between all of the machines for both <otherX> and 
<otherX>.localdomain, lists the 192.168.10.x address like a happy camper 
should

But a telnet <otherX> 25 or telnet <otherX>.localdomain 25 fails.

I can't tell if I need to add information about the other machines 
somewhere else on <name> or if they really are known but something is 
blocking it.

I also can't use mail/mailx between the machines. I noticed that 
mail/mailx always resolves <otherX> to <otherX>.localdomain (and sending 
to self is resolved to <name>.localdomain), so I changed network to use 
the localdomain suffix and added it in /etc/hosts before the instance of 
<other>. Neither telnet or mail/mailx worked with just <name>, so I am 
pretty certain that I didn't break anything by changing <name> to 
<name>.localdomain.

Some machines were already using hostname of <name>.localdomain and my 
records aren't good enough to know how I specified the name of the 
machine when I installed F14 (it never was an issue as everything worked 
until I tested mail/mailx and telnet so I never documented exactly how I 
should set machine name on install).

It seems that the telnet problem is a simpler one than the mail/mailx 
and if I can at least get telnet working, then I am closer to getting 
mail/mailx working.

Any suggestions?
Thanks in advance,
Paul

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