PHP Mail Problem - IP name possibly forged?

[neophyte]

Hello All -

I'm experimenting with the PHP mail function with the simplest of scripts shown here:

<?php
mail('[e-mail]','Test email subject line','Here is the message',
"From: [e-mail]");
?>

I've already set up my php.ini on my local dev environment to send mail, but sometimes (not always!) when I test my script, I get this message:

Warning: mail() [function.mail]: SMTP server response: 550 5.7.1 <[e-mail]>... Relaying denied. IP name possibly forged [210.14.45.xx] in F:\WEBDEV\_Koisis Base Directory\test_email.php on line 10.

I get this message occasionally with Microsoft Outlook as well if I'm replying to someone's email.

Does anyone know a way to fix this so I can continue my testing?

Neophyte

[edited by: jatar_k at 12:23 am (utc) on Sep. 28, 2007]
[edit reason] examplified and ip [/edit]

[jatar_k]

you have three different domains there. it could be denying just on those.

are you sending it from the domain "example3" where the error is originating from or somewhere else?

[neophyte]

jatar_k -

I did a cleanup of spyware stuff on my box and tried it again and now all is well - can now send to any domain with a "From:" header indicating any domain as well. Works for testing purposes.

Thanks!