Outlook (along with a few other desktop spam filters) utilizes a
self-learning filter to determine what you think is spam.
While this is
great for individual users, it's not consistent nor reliable for a general validation.
Instead, we've added in
hundreds of spam rules that have been published by Outlook.
Whenever the
content in your email triggers one of these rules, we'll provide you
with feedback on what can be changed to make your email look less
"spammy" to Outlook.
