邮件不通过表单发送

Question

This is the mail that should send (code in my PHP):

$message = 
"Hello 

Thank you for registering with us. Here are your login details...


User ID: $user_name
Email: $usr_email 
 
Passwd: $data[pwd] 


";

mail($usr_email, "Login Details", $message,
"From: \"Member Registration\" <[e-mail]>
" .
"X-Mailer: PHP/" . phpversion());

header("Location: thankyou.php");  
exit();

This is my php.ini details:

; For Win32 only.
; http://php.net/smtp
;SMTP = localhost
; http://php.net/smtp-port
;smtp_port = 25

; For Win32 only.
; http://php.net/sendmail-from
;sendmail_from = postmaster@localhost

; For Unix only.  You may supply arguments as well (default: "sendmail -t -i").
; http://php.net/sendmail-path
sendmail_path = "\"C:\xampp\sendmail\sendmail.exe\" -t"

; Force the addition of the specified parameters to be passed as extra parameters
; to the sendmail binary. These parameters will always replace the value of
;the 5th parameter to mail(), even in safe mode.
;mail.force_extra_parameters =

; Add X-PHP-Originating-Script: that will include uid of the script followed by the
;filename
mail.add_x_header = Off

; Log all mail() calls including the full path of the script, line #, to address and 
;headers
;mail.log = "C:\xampp\apache\logs\php_mail.log"

and my sendmail.ini

[sendmail]

smtp_server=smtp.gmail.com
smtp_port=25
error_logfile=error.log
debug_logfile=debug.log
auth_username=[e-mail]
auth_password=xxxxxxx
force_sender=[e-mail]

I'm a complete beginner so this could be totally wrong. When I submit the form where the mail function is, the thankyou.php page appears as specified

Answer 1

Check your mail logs to see if sendmail is having a problem delivering the message. Often your app can deliver it to sendmail correctly but sendmail can't send it out.