mail function - server error

[Socrates]

I'm running PHP on XP laptop. The php.ini settings are:

[mail function]
; For Win32 only.
SMTP = mail.socnet.com ; for Win32 only
smtp_port = "25"

; For Win32 only.
sendmail_from = NULL ; for Win32 only

When I use the mail function, I get the message "Server Error"

My code is:

$MsgFrom = (isset($POST["MsgFrom"])) ? $POST["MsgFrom"] : "";
$MsgTo = (isset($POST["MsgTo"])) ? $POST["MsgTo"] : "";
$MsgSubj = (isset($POST["MsgSubj"])) ? $POST["MsgSubj"] : "";
$MsgBody = (isset($POST["MsgBody"])) ? $POST["MsgBody"] : "";
if (!mail($MsgTo, $MsgSubj, $MsgBody)) {
PostMessage ("Error found:".$php_errormsg);

Can anybody help me solve this problem?

[Velausanakha]

I'm not sure if this will help

but under sendmail put an address

me@localhost or something

try that.

With Send from Null - how the hell can u tell who the mail is from, it needs a from address to be sent.

[Socrates]

The problem is with the "SMTP = localhost ; for Win32 only" in php.ini. I had it set to mail.socnet.com and when I sent email to somebody at that domain, it worked. The socnet.com server was causing the server error.

So I changed the line to localhost, and the problem is back. Is there an SMTP service on XP? If so, how to I check, config, etc.?

[Socrates]

The problem is somehow related to the X-Envelope. The PHP mail function does not allow explicit specification of the FROM address, and some email servers require this.

Anybody understand this problem and can help?