My doubt is as follows. I am sending emails through my system, which is responsible for sending the corporate image of the company. The problem is that the mail is coming without any defined style. Everything comes in flat. I have tried to place the styles inside tags and that I put it in the body of the message but it does not take me the styles. Also try to link the style file directly in the body of the message with the tag, but it has not worked either. I have researched but I can not do it, if someone can guide me in this, thank you very much. By the way I'm using mail () to send the mail.