Neat and tidy messages. Keep you emails in simple languages and avoid sending very large attachments in one mail. If needed, break into few parts/emails to avoid traffic congestion.

• 简单化信息。保持你的邮件用简单的语言，避免在邮件中发送巨大的附件。如果需要，发送邮件给少数人或者少数部以避免线路堵塞。