[LUG] email across a LAN

[Neil Williams <linux@xxxxxxxxxxxxxx>]

This may sound really daft, but I can't seem to send email across the LAN. 
I'm not thinking of fetchmail, I'm thinking of how to use Postfix and the 
mail command line program to send email from one linux box to another on the 
local network.

The machines:
linux.codehelp (server)
mandrake.codehelp (workstation)
fergus.codehelp (laptop)

Server and workstation run Mandrake 7.2, laptop Mandrake 8.0

So if I'm logged in on the server and I want to send email from 
linux.codehelp to the laptop, fergus, why doesn't:
[neil@xxxxx] mail neil@xxxxxxxxxxxxxxx
work?

I get a 'message undeliverable' bounce from Postfix.

Do I need to configure Postfix to recognise the hosts on the LAN?
(separately from the hosts file used by other programs) and, if so, how?
(I tried to understand Postfix using the Webmin interface, but it really 
didn't make much sense.)

Sending mail to other users on the same machine is fine, but email between 
machines just seems to vanish, reappearing as a bounce quite a long time 
later, if at all. The most recent test just seems to have disappeared 
completely.

-- 

Neil Williams
#-#-#-#-#-#-#-#-#
linux@xxxxxxxxxxxxxx
neil@xxxxxxxxxxxxxx
neil@xxxxxxxxxxxx
www.codehelp.co.uk


--
The Mailing List for the Devon & Cornwall LUG
Mail majordomo@xxxxxxxxxxxx with "unsubscribe list" in the
message body to unsubscribe.