Hi

I have both smtp and postfix installed in my linux box.I have setup a mail server on my machine.When i try to send a mail to the following error message is displayed

SMTP greeting failure..421 smtp connection went away !


Any directions

telnet <smtp-servername> 25

What do you get? You should also check your /var/log/messages for failure notices.

telnet <smtp server >25
conneting to <smtp server>...could not open a connection to host on port 25 :connection failed
is wat i get when i excute

also how cud i know if send mail deamon is actually running for that matter
-srikant

when i execute iptables -L

I get the following

/lib/modules/2.14.19-16mdk/kernel/net/ipv4/netfilter/iptables.o.gz:init_module device or resource busy
hint:insmod errors can be caused by incorrect module parameter,including invalid IO or IRQ parameters
you may find more information in syslog or the output from dmesg

modprobe:insmod /lib/modules/2.4.19-16mdk/kernel/net/ipv4/netfilter/iptables.o.gz failed
modprobe:insmod ip_tables failed
iptables v1.2.6a:cannot initailaize iptables table filter: iptables who?do you need to insmod

prehaps iptables or your kernel needs to be upgraded