Exchange Content Filter rejects

[twwabw]

Anyone else getting a bunch of these today? This morning, I have several clients w/Exchange 2010 on SBS 2011 (as well as my own Exchange) getting rejectiions from the spam filter. was there an update last night causing this? It's literally everywhere.

 

[Nate7311]

No more than normal. What, specifically, are you seeing?

 

[twwabw]

(reading confirmation): 550 5.7.1 Message
>>>> rejected as spam by Content Filtering.
>

 

[Nate7311]

Is that in the log file or from NDRs?

 

[twwabw]

NDRs from senders

 

[twwabw]

It's interesting- went into one site and scanned logs for rejects, and the ones they are specifically noticing are from everyday clients, important customers in fact- but the log will show this:
SclAtOrAboveRejectThreshold,8,pre-existing SCL found on the message.

 

[Nate7311]

OK, there's your problem. Either you have a content filter entry flagging those emails or you have your SCL set too high. Check your Exchange config.

 

[twwabw]

SCL at all sites set to 8. Never changed it. Haven't configured any content filter entries. Point of curiosity is "pre-existing scl"- pre-existing where? on the message from the sender? And again, this is happening at a bunch of sies simultanesouly. Can't find much on the "pre-existing scl" point.