why is my email going to spam?

[Anonymous]

i have two emails that continue to go into spam folder. when i change the subject line to XXX (which should be blocked), it goes through. doesn't anyone have any idea what this is about? and i send out tons of emails a day. its only these two. could if be this email template? the subject line has been changed countless times and are not spam 
 

[Kenny_Elkington]

Hi Shinoa,

Spam filtering can be highly specific per company.  I'd suggest reaching out to whoever administers your mail servers to determine the exact cause, so you can evaluate this.

[Josh_Hill13]

Is this a test/sample email?

Is this a new email template/ Is there an error with some part of the subject line or email from/

Is this just your email box or everyone's?

[Anonymous]

its a test email and it goes to the spam folder of everyone i send it to on the test.