I was wondering if it is possible to use the php mail() function with my email account on zohomail

I tried, but nothing happened

for example:

2. <?php
3. 
   
4. ini_set('SMTP','smtp.zoho.com');
5. ini_set('smtp_port',465);
6. ini_set('sendmail_from', 'admin@moderactif.com');
7. 
   
8. //define the receiver of the email
9. $to = 'niko@moderactif.com';
10. //define the subject of the email
11. $subject = 'Test for title'; 
12. //define the message to be sent. Each line should be separated with \n
13. $message = 'Message to send'; 
14. 
    
15. //define the headers we want passed. Note that they are separated with \r\n
16. $headers = 'From: admin@moderactif.com\r\nReply-To: admin@moderactif.com';
17. 
    
18. //send the email
19. $mail_sent = mail($to, $subject, $message, $headers);
20. mail($to, $subject, $message, $headers);
21. 
    
22. //if the message is sent successfully print "Mail sent correctly". Otherwise print "Mail failed" 
23. echo $mail_sent ? "Mail sent" : "Mail failed";
24. ?>