"550 Administrative prohibition" issues due to confirmed spam

UTM uses Cyren as a spam database. 

https://community.sophos.com/kb/en-us/115670

Please report a false positive with samples. 

EDIT by BAlfson 2018-11-16: https://community.sophos.com/kb/en-us/115670 has now been corrected.

This is a problem.  Cyren is not keeping up their side of the bargain.  They appear to be milking the CommTouch tool without adapting it to new exploits and capabilities.

I recommend changing from "Blackhole" to "Quarantine" for 'Confirmed spam action'.  This will require that folks log into their User Portal or that the UTM mail admin log into Mail Manager to delete the real spams and 'Release and report as false positive' for those falsely identified as "Confirmed."  This doesn't need to be a permanent change as it's easy to whitelist a domain for anti-spam and to report false positives.

I had to open a case with Support to get some of these taken care of.

I now have another case open for dozens of 'is-spam' reports made without a change in false-negative behavior.  Apparently, labs.sophos.com has anti-spam/virus that strips many of the reported is-spams, so they never get taken care of.

I'll PM MBP the case #s.

Cheers - Bob

Thanks for your reply. Since both messages have already been blocked I don't have access to the full mail header. I have added the domain names to the exception list, though. However exceptions should be a temporary solution, only.

BAlfson. I see. Thanks, I will give it a try. We pretty much 'Release and report as false positive' regularly. Sometimes a couple of hours later those messages (e.g. from wetranfer, eBay private messages... ) are being quarantined for another email address. It looks like reported false positives are delayed to Sophos labs? Is there any way to report spam or false positives to Cyren directly?

What Support and I learned is that Sophos does not forward is-spam@labs.Sophos.com reports from XG or UTM to CYREN as is-spam is just for their other mail products.  The case is still open and we're still waiting on Sophos to come up with a solution.

Since this case was opened, I've submitted 70+ spams to the guy in support and he has, in turn, submitted them to CYREN.  I can see that most similar ones are now being blocked.  I'll submit five more today from this week.

Cheers - Bob

What Support and I learned is that Sophos does not forward is-spam@labs.Sophos.com reports from XG or UTM to CYREN as is-spam is just for their other mail products.  The case is still open and we're still waiting on Sophos to come up with a solution.

Since this case was opened, I've submitted 70+ spams to the guy in support and he has, in turn, submitted them to CYREN.  I can see that most similar ones are now being blocked.  I'll submit five more today from this week.

Cheers - Bob