[ale] My mail ends up as SPAM

[cfowler at outpostsentinel.com (Christopher Fowler)]

I've been dealing with an issue for a while and it seems as more and 
more people use spam filtering it
is causing me headache.

Mail that I send people ends up in their spam folder and I can not 
figure out why.  I can not even
send email to yahoo users for this reason.

I'm assuming it may have to do with the way I have things configured.  
Our mail server is smtp.opsdc.com
at 65.254.217.214.  However when we sendmail we send mail  using domain 
outpostsentinel.com.  Could
this be the root cause?

Chris