My gods, I'm glad my ISP provided different e-mail software; can you imagine the embarrassment at getting innocent sentences like these flagged?

"I made sure to take repellent spray on the camping trip, so mosquitos wouldn't bite me."

"If you suck an ice-cold drink through your straw too quickly, you might get a headache."

If a sentence like these landed MY e-mail in someone else's spam filter, I'd be extremely worried.