How to get an attractive email title?

How to make the title of your open letter stand out?

I define the following titles as good titles: simple and popular, with a first name and surname when necessary;

Taking product or personal highlights as the topic; In order to avoid conformity, attract customers' attention and stimulate their curiosity through novel wording or creativity; Have a certain or enough inflammatory.

Taking the products that customers are most concerned about as the title can stimulate their interest, and writing competitors, excellent suppliers and price butchers in the title as the highlights of innovation. To put it bluntly, it is necessary to show confidence in suppliers, because suppliers know that they are here to compete and don't have to hide it. In fact, this title is not only the supplier's business strategy, but also from the customer's standpoint, which can directly target the actual situation and needs of the target customers.