Can someone please point me to a guide from 2008 that shows you how to configure sendmail to use authentication to a relay server to send e-mails from an ISp that blocks port 25?

I've followed the guide here http://qiaoyang.blogspot.com/ to no avail.

I'm getting a relay=[127.0.0.1] [127.0.0.1], dsn=5.0.0, stat=Service unavailable messages in /var/log/maillog.

I'm running FC9

sendmail -d0.1 -bv
Version 8.14.2
Compiled with: DNSMAP HESIOD HES_GETMAILHOST LDAPMAP LOG MAP_REGEX
MATCHGECOS MILTER MIME7TO8 MIME8TO7 NAMED_BIND NETINET NETINET6
NETUNIX NEWDB NIS PIPELINING SASLv2 SCANF SOCKETMAP STARTTLS
TCPWRAPPERS USERDB USE_LDAP_INIT


Stunnel.conf

socket = l:TCP_NODELAY=1
socket = r:TCP_NODELAY=1
debug = 7
output = stunnel.log
client = yes
[rev-smtps]
accept = 127.0.0.1:2525
connect = smtp.sbcglobal.yahoo.com:smtps