Undelivered Mail Returned to Sender

This is the Postfix program at host perform.iiug.org.

I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. It's attached below.

For further assistance, please send mail to <postmaster>

If you do so, please include this problem report. You can
delete your own text from the attached returned message.

                        The Postfix program

<june.c.hunt_at_gmail.com> (expanded from <ug_at_iiug.org>): host
    gmail-smtp-in.l.google.com[64.233.185.114] said: 552 5.7.0 Illegal
    Attachment 12si7932614wrl (in reply to end of DATA command)

attached mail follows:

Spam detection software, running on the system "perform.iiug.org", has
identified this incoming email as possible spam. The original message
has been attached to this so you can view it (if it isn't spam) or label
similar future email. If you have any questions, see
postmaster_at_iiug.org for details.

Content preview: This message was not delivered due to the following
  reason: Your message could not be delivered because the destination
  computer was unreachable within the allowed queue period. The amount of
  time a message is queued before it is returned depends on local
  configura- tion parameters. [...]

Content analysis details: (9.4 points, 5.0 required)

 pts rule name description
---- ---------------------- --------------------------------------------------
 1.0 NO_REAL_NAME From: does not include a real name
 0.1 FORGED_RCVD_HELO Received: contains a forged HELO
 1.4 MSGID_FROM_MTA_ID Message-Id for external message added locally
-2.6 BAYES_00 BODY: Bayesian spam probability is 0 to 1%
                            [score: 0.0000]
 1.6 RCVD_IN_BL_SPAMCOP_NET RBL: Received via a relay in bl.spamcop.net
               [Blocked - see <http://www.spamcop.net/bl.shtml?70.43.106.142>]
 3.9 RCVD_IN_XBL RBL: Received via a relay in Spamhaus XBL
                            [70.43.106.142 listed in sbl-xbl.spamhaus.org]
 4.1 FORGED_MUA_OUTLOOK Forged mail pretending to be from MS Outlook

The original message was not completely plain text, and may be unsafe to
open with some email clients; in particular, it may contain a virus,
or confirm that your address can receive spam. If you wish to view
it, it may be safer to save it to a file and open it with an editor.

attached mail follows:

This message was not delivered due to the following reason:

Your message could not be delivered because the destination computer was
unreachable within the allowed queue period. The amount of time
a message is queued before it is returned depends on local configura-
tion parameters.

Most likely there is a network problem that prevented delivery, but
it is also possible that the computer is turned off, or does not
have a mail system running right now.

Your message was not delivered within 8 days:
Server 194.68.141.248 is not responding.

The following recipients did not receive this message:
<ug_at_iiug.org>

Please reply to postmaster_at_iiug.org
if you feel this message to be in error.