This page documents the SENDMAIL_F_OPTION configuration setting in FormMail.
Type Of Setting
SENDMAIL_F_OPTION is a LEAVE setting, which means...
LEAVE : you can change this setting if you really need to and know what you're doing, but we recommend that you leave this setting unchanged.
Précis
Controls use of "-f" option for sendmail.
Description
SENDMAIL_F_OPTION controls whether to use the "-f" option when sending mail.
Some servers use a Mail Transfer Agent called "sendmail" and some of these require the "-f" option to be provided - this option tells sendmail the "From" user or sender.
FormMail originally supported this feature using the "mail_options" setting inside your HTML forms. That was a silly place for us to put this feature! It's a server configuration, so it should live in the configuration section of FormMail, not in your forms.
Set SENDMAIL_F_OPTION to true to tell FormMail to specify the "-f" option when sending mail or set it to false to prevent FormMail from specifying it.
Review the email logic description for more information.
Default Value
From version 9 onwards:
$SENDMAIL_F_OPTION = false;Before version 9:
define("SENDMAIL_F_OPTION",false);Examples
From version 9 onwards:
$SENDMAIL_F_OPTION = true;Before version 9:
define("SENDMAIL_F_OPTION",true);
