Can't seem to disable STARTTLS in Fedora sendmail

[Wayne Johnson <wdtj yahoo com>]

We have a new Fedora system that is suppose to send it's mail (using
sendmail, no flames PLEASE!), to smtp.comcast.net.  When we attempt to
send it from a local account, we get an error back that the user is
invalid.  Strange, but it works find for mail being relayed from/for
other windows machines.  

The maillog shows:
Jan 26 22:35:18 heritage1 sendmail[31926]: STARTTLS=client,
relay=smtp.comcast.net., version=TLSv1/SSLv3, verify=FAIL,
cipher=RC4-SHA,
bits=128/128
Jan 26 22:35:18 heritage1 sendmail[31926]: i0R4ZH6U031924:
to=<wdtj yahoo com>, ctladdr=<root heritage1 heritageweb org> (0/0),
delay=00:00:01, xdelay=00:00:01, mailer=relay, pri=30342,
relay=smtp.comcast.net. [63.240.76.27], dsn=5.1.1, stat=User unknown
Jan 26 22:35:18 heritage1 sendmail[31926]: i0R4ZH6U031924:
i0R4ZI6U031926:
DSN: User unknown

OK, so we're attempting to connect to comcast with TLS and we don't have
a
certificate.  I've tried to turn off TLS with several different methods
(Srv_Features: V in access, define(`confTLS_SRV_OPTIONS', `V') in
sendmail.mc, etc.), but sendmail continues to attempt TLS.

How do I turn TLS off!

TIA,


=====
---
Wayne Johnson,             | There are two kinds of people: Those 
3943 Penn Ave. N.          | who say to God, "Thy will be done," 
Minneapolis, MN 55412-1908 | and those to whom God says, "All right, 
(612) 522-7003             | then,  have it your way." --C.S. Lewis

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