note 126334 added to function.mail

HOW PHP MAIL() WORKS INTERNALLY, more or less, according some tests i did imagine php is running with uid 33 when reaches a mail() function like this ---- /my/htdocs/mailer-script.php line 69 ---- $was_sent = mail( 'Alice <alice@wonder.land>, white-rabbit@endless.cave', 'Invitation', "Hi, you are cordially invited to drink a cup of tea at my house\ntomorrow at sunset", "Some-Header: foo\r\nOther-Header: bar", // can also be an associative array of 'Header' => 'Value' 'param1 param2'); ---- then look for ini options like this (all optional, on any operating system) ---- ini options ---- ; path to mail sender command + arguments, if omitted will defaults to NULL sendmail_path = '/bin/sendmail-esque arg1 arg2' ; the From header, can be also set in sendmail but make sure it SENDS ONE sendmail_from = 'Mad Hatter <hatter@house.forest>' ; recommended to not being blind, look at file permissions mail.log = '/var/log/php/mail.log' ; adds an originating script header to send php mail internals (security sensitive) mail.add_x_header = on ; outgoing mail server address, if omitted will defaults to "localhost" ;SMTP = 'localhost' ; server tcp port, if omitted will defaults to port 25 ;smtp_port = 25 ---- then craft a message like this (please avoid duplicated headers) ---- mail message ---- From: Mad Hatter <hatter@house.forest> To: Alice <alice@wonder.land>, white-rabbit@endless.cave Subject: Invitation Some-Header: foo Other-Header: bar X-PHP-Originating-Script: 33:mailer-script.php Hi, you are cordially invited to drink a cup of tea at my house tomorrow at sunset ---- then APPEND this log line ---- /var/log/php/mail.log ---- [<date> <time> <zone>] mail() on [/my/htdocs/mailer-script.php:69]: <all headers joined...> ---- THEN IF (sendmail_path is not empty, AND file is found, AND has +rx permissions): - craft and run this shell command ---- shell ---- /bin/sendmail-esque arg1 arg2 param1 param2 ---- - send the crafted message to its standard input - wait the program to exit - pass last exit code to mail() return OR ELSE (i.e. sendmail bin not run) (not sure about these): - try to internally open an smtp connection (with fsockopen()?) - send the message directly and wait for connection to close - pass last socket status to mail() return ---- Server IP: 45.112.84.4 Probable Submitter: 45.112.85.242 (proxied: 201.241.15.102) ---- Manual Page -- https://php.net/manual/en/function.mail.php Edit -- https://main.php.net/note/edit/126334 Del: integrated -- https://main.php.net/note/delete/126334/integrated Del: useless -- https://main.php.net/note/delete/126334/useless Del: bad code -- https://main.php.net/note/delete/126334/bad+code Del: spam -- https://main.php.net/note/delete/126334/spam Del: non-english -- https://main.php.net/note/delete/126334/non-english Del: in docs -- https://main.php.net/note/delete/126334/in+docs Del: other reasons-- https://main.php.net/note/delete/126334 Reject -- https://main.php.net/note/reject/126334 Search -- https://main.php.net/manage/user-notes.php