<https://forums.slipstick.com/threads/90886-help-please-boolean-can-i-use-and-not-etc-in-a-rule/>
<http://schema.org/articleBody>
"I am finding, with our Medical Centre incoming mass emails with similar email subject and body (doctors appointments), it very hard to set rules that are inclusive of words and still allow continuous reading of the next rules. I am aware of the..."
<https://forums.slipstick.com/threads/90886-help-please-boolean-can-i-use-and-not-etc-in-a-rule/>