Linux / UNIX: PHP mail() Error Log File

How do I view PHP mail() errors? How do I see php mail() error log file under UNIX or Linux?

Usually, mail log including errors are sent to your systems mail server log directory. If you are using CentOS / RHEL / Redhat or Fedora Linux, check /var/log/maillog file using any one of the following command:
# tail -f /var/log/maillog
# grep '[email protected]' /var/log/maillog
# more /var/log/maillog

If you are using Ubuntu or Debian Linux, check /var/log/mail.err and /var/log/mail.log files:
# tail -f /var/log/mail.log
# tail -f /var/log/mail.err

Sample PHP Code To Test Your Log File

Create a php code or upload a file called mailtest.php as follows:

<title>SXI LLC PHP: Test mail() </title>
$email = "[email protected]";
$subject = "Happy Birthday!";
$msg = "Wishing you all the great things in life, hope this day will bring you an extra share of all that makes you happiest.";

Run this as:
And check your server log files as mentioned above.

Posted by: SXI ADMIN

The author is the creator of SXI LLC and a seasoned sysadmin, DevOps engineer, and a trainer for the Linux operating system/Unix shell scripting. Get the latest tutorials on SysAdmin, Linux/Unix and open source topics via RSS/XML feed or weekly email newsletter.