邮件标题可以为：库存， 新款， 新到货， 促销，礼物，运输快等字眼吸引人。
多尝试不同模板。以下主题可以增加你的邮件被打开的概率：
主题1：Mail faliure notice
主题2：Do you sell XX related products?
主题3：Get your moeny back when you are not satisfied with your order
主题4：Making your some one you care loyal to you
主题5：Cannot reach you by phone, what happend?
主题6：Could you do me a favour to help me to get more information about your city?
主题7：Greeting from an old friend (Long time no see you!)
主题8：Find your competitor's suppliers precisely?
主题9：Fraud warning
主题10：A professional market survey about XXX
