Your signature at the end of each email message should not contain your list of family surnames that you're researching. Just leave off that string of surnames so that our archives function as effectively as possible. For more information, see Karen's message to Roots-L on this subject. Don't send attached files. Others on the list might not be able to read them.
Straight text works best.
Don't use HTML to create your message. It takes up a lot of space, and others on the list might not be able to read your message. We have a Zero-Tolerance Policy regarding flames. One flame and you're out. Don't reprint or copy private email to the list.