The document provides 10 tips for writing effective emails that will be opened, read and responded to favorably by recipients. The tips are: 1) use a strong subject line; 2) include an email signature; 3) be concise and keep messages relevant; 4) use plain text formatting; 5) ask the reader to take action; 6) consider tone of voice; 7) respond promptly; 8) keep attachments under 5MB; 9) keep mail groups to 20 people or less; and 10) proofread before sending. Following these tips will increase the likelihood that recipients will actually read and positively react to emails.