How to avoid hitting the spam email sent by the mail() function?

Question

Email

Sent a test email, got into spam. The send function itself:

mail("[email protected]", "the subject", "Messssagge dsf sdf sdfsdf", 'From:'."[email protected]");

A passing question, how to change my MX from mail.domain.ru to domain.ru?

Answer 1

It's probably something else. In order to find out what the problem is, use this service .