[PHP Warning: mail(): " sendmail_from" not set in php.ini or custom "From:" header missing

Question

I am trying to use PHP's mail() function to send a test mail.

$to = "****@gourab.me";
$sub = "Php Mail";
$msg = "Test Message From PHP";

mail($to, $sub, $msg, "From: **********@gmail.com");

When I try to debug it through step in phpdbg, it shows the message:

[PHP Warning: mail(): " sendmail_from" not set in php.ini or custom "From:" header 
missing in C:/xampp/htdocs/tinyProj/mail.php on line 4]

I cannot understand why?

Answer 1

It seems your From header is not correctly formatted. Try this instead:

$headers =  'MIME-Version: 1.0' . "\r\n"; 
$headers .= 'From: Your name <[email protected]>' . "\r\n";
$headers .= 'Content-type: text/html; charset=iso-8859-1' . "\r\n"; 

mail($to, $subject, $body, $headers);

Answer 2

Bro it seems that you're using you own PC/localhost/127.0.0.1 server that's why you can't connect to SMTP server. You can only send mail from live server using similar coding with some amendments :) i.e. add one parameter "Header/From".

mail("[email protected]","Answer","Hope You Vote My Answer Up","From: [email protected]");