The mail() function allows you to send mail.
For the Mail functions to be available, PHP must have access to the
sendmail binary on your system during compile time.
If you use another mail program, such as qmail or postfix, be sure to
use the appropriate sendmail wrappers that come with them. PHP will
first look for sendmail in your
PATH, and then in
It's highly recommended to have sendmail available from your
PATH. Also, the user that compiled PHP must have
permission to access the sendmail binary.
The behaviour of these functions is affected by settings in
|smtp_port||"25"||PHP_INI_ALL||Available since PHP 4.3.0.|
|sendmail_path||"/usr/sbin/sendmail -t -i"||PHP_INI_SYSTEM|
For further details and definitions of the PHP_INI_* constants, see the Appendix I,
Here's a short explanation of the configuration directives.
Used under Windows only: host name or IP address of the SMTP server PHP should use for mail sent with the mail() function.
Used under Windows only: Number of the port to connect to the server
specified with the
SMTP setting when sending mail
with mail(); defaults to 25. Only available since
Which "From:" mail address should be used in mail sent from PHP under Windows. This directive also sets the "Return-Path:" header.
Where the sendmail program can be found,
configure does an honest attempt of
locating this one for you and set a default, but if it fails,
you can set it here.
Systems not using sendmail should set this directive to the
sendmail wrapper/replacement their mail system offers, if any.
For example, » Qmail
users can normally set it to
qmail-inject does not require any option to process mail correctly.
This directive works also under Windows. If set,
ignored and the specified command is executed.