Messages from Cron rejected

[widomaker]

Hello,

We use MagicSpam on Plesk 11 with CentOS 6 and Postfix.

Recently, e-mail messages generated by Cron have been rejected by MagicSpam. See below...

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Code: Select all

From: root@plesk.example.com (Cron Daemon)
To: root@plesk.example.com
Subject: Cron <root@plesk> /usr/local/psa/libexec/modules/watchdog/cp/send-report weekly
Date: Mon, 19 Aug 2013 01:00:02 -0400 (EDT)


Failed to send message: `mail() failed: Failed to add recipient: pleskadministrator@example.org [SMTP: Invalid response code received from server (code: 550, response: 5.7.0 Malformed or missing HELO.Rejected by MagicSpam 1.0.5-3 (http://www.magicspam.com/).Visit http://www.linuxmagic.com/best_practices/valid_helo_domain.html for more information)]'.

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When I look through the logs for rejected messages sent to "plesk@example.org", there are no rejected messages logged to "plesk@example.org". Other messages to "plesk@example.org" are logged and indicate that they were not rejected because they are IP_EXEMPT (127.0.0.1 is whitelisted).

I don't understand why this is happening.

Any ideas, suggestions, or solutions are appreciated.

Regards,
Bob

[magicspam]

Hello Bob,

Thank you for your message. In this case it appears as though your server has an invalid or missing hosts entry. CentOS normally insists on a fully qualified hostname in /etc/sysconfig/network.

Please post the contents of your /etc/sysconfig/network file and your /etc/hosts file. You may wish to email these to us for security reasons - support@magicspam.com

Thanks Bob!

-- MagicSpam Support Team --