here some rules: 1-don't send unsolicited mail, 2-don't use capital letters when you write, 3-don't spam, 4-don't argue or express very strong opinions, 5-don't discuss private matters on the net, 6-don't send chain letters via mail, 7-always write subject heading, 8-use asterisks to emphasise, 9-use underscore before and after the title of a book, 10-you can use acronyms to make the message short, 11-be careful with humour
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