QUOTE(GeoffL @ Mar 24 2009, 04:57 AM)

Spamcop has been unable to process the last half dozen or so pieces of spam that have made it through to my inbox because "No source IP address found, cannot proceed." the latest that I've tried to report was:
http://www.spamcop.net/sc?id=z2725673310zf...baee80b8363388zImmediate failure noted at the first Received: line
0: Received: from fhw-inmx18.plus.net ([212.159.10.146]) by gjctech.co.uk ([192.168.42.25] running VPOP3) with ESMTP for <x>; Tue, 24 Mar 2009 09:22:01 -0000
Hostname verified: fhw-inmx18.plus.net
Possible forgery. Supposed receiving system not associated with any of your mailhostsWill not trust anything beyond this header
As Miss Betsy points out, the very first 'option' listed is to
Add/Edit your mailhost configuration ....
QUOTE
Has Spammy found a way to neutralize Spamcop, or is the lack of IP address something to do with my SMTP server?
Neither question is clear to me. There is an IP Address shown in the process, and yes, there is an issue with the MailHost Configutation of your Reporting Account. Spammer has no control over that situation.
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From the above, I have an infinite number of email addresses - and the instructions say that I must configure mailhosts for each email address that might receive spam
Please point to just where you found that statement made, most definitely in contrast to how many times and different ways it has been posted that it's the "host" that needs to be added in, not the "address" ....
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So, do I just need to configure mailhosts for one address, one address per domain, or all possible addresses?
The initial answer would be "one address per host" such that the "host" gets entered. However, you have definitely confused the isuue by suggesting that you have mapped multiple Domain names to the same server. (I wil admit that I'm not sure I understand your description of "first priority aliased to mail[at]domain" at all. No idea what "priority" might mean and not sure if you are using "mail" as an actual addres or not ... very confusing .. wondering about all those other issues involved, like rDNS for example)
QUOTE(GeoffL @ Mar 24 2009, 06:00 AM)

Yes - but that didn't give me any clues that mailhost config might be to blame.
??? One Received: line looked at for analysis, result was an immediate error due to that 'host' not being recognized as "yours" ..... What other possibilities might there actually be?
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To get the info necessary to make my edit, I had to root around elsewhere.
Not sure I know what you are trying to say there. This Forum is laid out with different parts of the SpamCop.net system split out into their own sections. Is this what you mean by "elsewhere" ????
QUOTE
However, I'm now fairly sure that my mailhost config is to blame - but I don't know what I have to do to correct this: hence the question at the end of my post.
The above comment also applies to the
SpamCop FAQ as found via links at the top of the page, Wiki pages also basically self-defined. There are step-by-step procedures offered up, definitions, descriptions, etc. available in both places, other data found in the Pinned endtries in the MailHost Configuration Forum section, the Dictionary, the Glossary, and the Original/Official FAQ ....
At this point, I'm left to wonder what you have and/or have not done, comparing all the existing data and all of the "rooting around" you describe. Providing a Tracking URL was a great thing to do, such that the actual error condition could be seen and discussed. However, your "multiple Domains" scenario with no definition leaves a lot of questions and few answers available from this side of the screen.
My suggestion, try the
read this first Pinned enty in the MailHost Configuration Foum section, and provide all the "real" and "specific" data to Don, just as suggested/requested there. Feedback as to what the real answer ends up being (specifically the "multiple Domains pointing to the same server" situation) would be appreciated by all, to include possible future users that find themselves in the same boat.
And yes, I moved this Topic/Discussion to the MailHost Configuration Forum section.