SMTP server response: 551 User not local, any idea what this

[Semipro15]

I am running an abyss server with PHP 5 and with ArGoSoft Mail Server, anybody know how to fix this problem?(SMTP server response: 551 User not local) PLEASE help, really desperate.

[k1ll3rdr4g0n]

You have the option not to relay if user is not local. Uncheck that and check relay....goto SMTP options and hit AMTP auth and use POP# usernames/passwords
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[Semipro15]

<?php
$ADDR = "name@example.com";
if (mail($ADDR,"Testing","This is a test"))
echo "Mail function succeeded<br />";
else
echo "Mail function FAILED<br />";
?>
that is the script that I use, and it says that the mail function succeeded, but I didn't get the message in my hotmail inbox...

[Emzo]

User not local - this is from the email server.
SMTP server response: 551 User not local. The php script is OK but the problem is in the setting of this SMTP server. Read the documentation.