Third party blacklist stops all mailflow when enabled

Article:TECH89236  |  Created: 2008-01-26  |  Updated: 2013-10-22  |  Article URL
Article Type
Technical Solution



Mailflow has stopped since March 26th 2008.

Third party blacklists are enabled, and is present in the list. Any message sent to a domain protected by Symantec AntiSpam products gets a 550 5.2.1 or 554 response.

The messages look like:

    "550 5.2.1 Mail from x.x.x.x refused: spam site."
    "Your message did not reach some or all of the intended recipients.
    Subject:     RE: test
    Sent:        26/03/2008 10:56
    The following recipient(s) cannot be reached:
    administrator@domain.ext on 26/03/2008 10:58

    The message reached the recipient's e-mail system, but delivery was refused.  Attempt to resend the message.  If it still fails, contact your system administrator.

    < mailserver.domain.ext #5.2.1 SMTP; 550 5.2.1 Mail from x.x.x.x refused: spam site.>"


This blacklist is no longer in use. It went out of service in December 2006.


Remove from your list of 3rd party blacklists.

Technical Information Going Offline:

Long-Dead ORDB Begins Returning False Positives:

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