[Exim] firewall blocking my smtp?

hi, i'm a novice with exim and i've been trying to set up my linux machine
here at work to deliver it's own email outside of the network. i can
deliver perfectly to any address within the local network, but when i send
to any address beside my company domain the messages just sit in my queue
indefinitely

i'd appreciate any patient person's help

[ sickener@??? ]