Mail() Some Addresses Won't Receive Mail

[Anon]

This works when I send email for people within my company. When I try sending to outside email accounts no mail is sent.

Any ideas? I was told that no email addresses are blocked on our server (SunOS), how can I check this for myself?

<?php
$to = "[e-mail]";
$from = "[e-mail]";
$replyto = "[e-mail]";
$subject = "test";
$body = "test test test";

$fd = popen("/usr/lib/sendmail -t ","w");
fputs($fd, "To: $to\n");
fputs($fd, "From: $from\n");
fputs($fd, "Reply-to: $replyto\n");
fputs($fd, "Subject: $subject\n");
fputs($fd, "$body\n\n");
pclose($fd);
?>

Also no problems using just mail().

[Anon]

It would probably be your "from" address. Most mail servers are configured to only send e-mail using specific domains (like your internal work domain.)

It's probably pretty unlikely that you'll be able to change this.

[Anon]

When I run phpinfo(), I get this information:

sendmail_from:
local value = no value
master value = no value

Is this related to my problem??

[Anon]

The problem was with the php.ini file. Running on a Sun Solaris/Apache server:

/usr/lib/sendmail -t

I was missing the \"- t\".

Damn, I solved my own problem. Maybe this will help someone else someday.

\"Thanks Brian!\"

\"You\'re welcome Brian!\"