Why are your sent from, and your respond to addresses different? If anything is going to be a trigger it’s that
Sent from: email@example.com <firstname.lastname@example.org>;
From: Mr Maxwell Moore <email@example.com>
Sent: Tuesday, September 4, 2012 7:42 AM
Subject: Dear Friend.
My name is mr maxwell moore. I got your contact email address from the internet Business directory and decided to contact you for this transaction that is based on trust.I need your urgent assistance in transferring the sum of ($10.5m) million to your account.The transfer is risk free on both sides hence you are going to follow my instruction till the fund is transfered to your account
Having gone through a methodical search,I decided to contact you hoping that you will find this proposal interesting. Please on your confirmation of this message and on indicating your interest, I will furnish you with more information as i get our reply.
Mr Maxwell Moore
Don’t forget to keep sending me your spam at firstname.lastname@example.org