Article ID: 1375, created on Oct 6, 2008, last review on May 10, 2014

  • Applies to:
  • Plesk 8.x for Linux/Unix

Resolution

The bounce message example:

Hi. This is the qmail-send program at domain.tld
I'm afraid I wasn't able to deliver your message to the following
addresses.
This is a permanent error; I've given up. Sorry it didn't work out.

<mailname@domain.tld>:
192.168.1.1 failed after I sent the message.
Remote host said: 550 5.7.1 This system has been configured to reject
y
our mail. An IP address (192.168.1.2) found in the message's'
Received:' headers is listed by the lookup site
'sbl-xbl.spamhaus.org.'.

This error means that the server a message was sent from is listed in some RBL database. There are two reasons why the server can be added to RBL:
- mail relaying is opened on the server.
- much SPAM amount was sent from the server, 766.

You can read more about RBL SPAM protection at
http://stason.org/articles/technology/email/junk-mail/black_listing.html.

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