[Opencart] Why is mail not coming?

Question

PHP

When ordering a product, the mail is sent, but not received. I tried yandex, mail, hotmail mailers. It came only to the work mail of the enterprise where I work, and then blocked the content. When sending, I use the standard Mail method. Tell me how to set up?

Answer 1

Try to configure via SMTP.
Do emails go to spam?
Does the mail() function work on hosting?