title: My server and php mail() function sends email to the spam folder
body: <p>is there any way i install SMTP service on my Linux server and use php to send emails through it ?</p>
  
  <p>so that emails doesn't show up as spam ?</p>
  
  <p>maybe through ssl ?</p>
  
  <p>my mail() function is perfect , with perfect headers , but still sending to spam :(</p>
  
  <p>Thanks .</p>