<?php
// The message
$message = "Line 1\r\nLine 2\r\nLine 3";
// In case any of our lines are larger than 70 characters, we should use wordwrap()
$message = wordwrap($message, 70, "\r\n");
// Send
mail('stilcasa2015@gmail.com', 'My Subject', $message);
?>
Fatal error: Uncaught Error: Call to undefined function mail() in /in/1dYCG:9
Stack trace:
#0 {main}
thrown in /in/1dYCG on line 9
Process exited with code 255.
Output for 7.3.32 - 7.3.33, 8.0.13
Warning: mail(): Could not execute mail delivery program '/usr/sbin/sendmail -t -i' in /in/1dYCG on line 9