That's right. The delay notice below says it was unable to connect to an SMTP server at falconfootball.org. Is your MTA at falconfootball.org listening for connects on port 25 from the outside?
grep "Port" sendmail.cf
O DaemonPortOptions=Port=smtp,Addr=127.0.0.1, Name=MTA #O ClientPortOptions=Family=inet, Address=0.0.0.0
netstat -na |grep ":25 "
tcp 0 0 127.0.0.1:25 0.0.0.0:*
LISTEN
and in the etc/hosts file
IPAddress Hosts Alias 127.0.0.1 localhost [##.###.##.##] falconfootball.org
Listed below is a message I received from my business email side...
The original message was received at Fri, 23 Feb 2007 12:34:05 -0500 from localhost.localdomain [127.0.0.1]
----- Transcript of session follows ----- <test@falconfootball.org>... Deferred: Connection refused by falconfootball.org. Warning: message still undelivered after 4 hours Will keep trying until message is 5 days old <snip>