This is likely to continue as an intermittent problem... I am not on Metrocast, but I was on the other end of this recently. Someone with a Metrocast email tried to send me something, and my mail server bounced it. Here is the info from the logs showing that my mailserver rejected it after spamcop.net blacklisted the metrocast mail server as a source of spam. (The 65.175.128.136 address is one of the metrocast mailservers.)
Note the last line of the second chunk of info...it's been blocked roughly 1/3 of the time over the past month. Given that 99% is considered a low uptime number in an IT situation, 66% is abysmal.
From Tuesday:
Quote:
Event: rejected rejected
User: -remote-
Domain:
Sender: xxxxx@metrocast.net
Sent Time: Oct 15, 2013 12:59:12 PM
Sender Host: proofpoint-cluster.metrocast.net
Sender IP: 65.175.128.136
Authentication: unauthorized
Spam Score:
Recipient: xxxxx
Delivery User: xxxxx
Delivery Domain: xxxxx
Delivered To:
Router: reject
Transport: **rejected**
Out Time: Oct 15, 2013 12:59:12 PM
ID: 1VW7xh-0009g4-xxx
Delivery Host: proofpoint-cluster.metrocast.net
Delivery IP: 65.175.128.136
Size: 0 bytes
Result: JunkMail rejected - proofpoint-cluster.metrocast.net [65.175.128.136]:37204 is in an RBL, see Blocked - see http://www.spamcop.net/bl.shtml?65.175.128.136
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Quote:
Query bl.spamcop.net - 65.175.128.136
(Help) (Trace IP) (SenderBase Lookup)
65.175.128.136 listed in bl.spamcop.net (127.0.0.2)
If there are no reports of ongoing objectionable email from this system it will be delisted automatically in approximately 13 hours.
Causes of listing
System has sent mail to SpamCop spam traps in the past week (spam traps are secret, no reports or evidence are provided by SpamCop)
SpamCop users have reported system as a source of spam less than 10 times in the past week
Additional potential problems
(these factors do not directly result in spamcop listing)
Too many delisting requests were made. Next request might be allowed after 13.8 days
Because of the above problems, express-delisting is not available
Listing History
In the past 30.3 days, it has been listed 12 times for a total of 10.9 days
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