why i cant received and send emails on an iphone SE

If you have read the article at the top left of this thread & the problem persists, check the following:

The range of the mobile network, see this Apple article:

If you see No Service or Searching on your iPhone or iPad

https://support.apple.com/en-us/HT201415

Wi-Fi network, see this Apple article:

Connect to Wi-Fi on your iPhone, iPad, or iPod touch

https://support.apple.com/en-us/HT202639

I cannot send e mail on my new S the mail goes to outbox

What is the problem?

When you send an e-mail message, that message goes to the outbox, as proof that you have sent that message.