Vbulletin Emails = SPAM!

[photoshopfreak]

I guess this is the most appropriate forum if not it'll probably need to go in the Break room.

I'm having problems with default vbulletin email being delivered due to what i believe is spam triggers in the text, what i did was re write the email text & it starting getting through to yahoo email members but still other email services are sending my emails to spam or just black holeing them, what i want is for you to direct me to the most aggressive spam checker online that detects spam triggers or maybe suggestions about how i can solve this issue...