sendmail config

[Steven Friedrich]

I configured KMail with SSL to send mail from a foreign network thru my 
broadband ISP.  This works fine.

I want to be able to use send-pr, and thought I might me able to configure 
sendmail as outgoing only. I have sendmail_enable="NO" in /etc/rc.conf.

local mail works fine.  I don't want incoming from the Internet.

I copied /etc/mail/freebsd.mc to laptop.mc and set SMART_HOST to  
mail.insightbb.com and moved sendmail.cf to sendmailcf.sav.  I compiled 
laptop.mc with m4 /usr/share/sendmail/cf/m4/cf.m4 laptop.mc

I then copied laptop.cf to sendmail.cf and rebooted.

Now, the response is "Service not available", but I think it's because I don't 
have sendmail configured to use SSL, like KMail.

Is it possible?
I have read the Handbook and an old version of "Unix System Administration 
Handbook", and the README in /usr/share/sendmail/cf, and in /etc/mail.