[Bad return: No source IP address found, cannot proceed.]

ID here:

id=z6805984965zb1ee280fc42da5ee233e062b789e88f1z

 

 

[Bad return: No source IP address found, cannot proceed.]

I've been using SC for several years now; and this is a first. 

Processing details:

SpamCop v 5.4.0 © 2023 Cisco Systems, Inc. All rights reserved.
Here is your TRACKING URL - it may be saved for future reference:
https://www.spamcop.net/sc?id=************************************************
No source IP address found, cannot proceed.
Add/edit your mailhost configuration
Finding full email headers
Submitting spam via email (may work better)
Example: What spam headers should look like
Nothing to do.
 

I've double checked -- and I did get the entire spam in to -- the report. 

(I've been told previously that SC reports {url} should not be posted here; so for now I'm omitting it.}

What type / level of info do I need to provide; whom needs to be notified - that spammers can now block SC?