We discovered that two of the SPAM Databases we have been using (although set to a low trust level) have become rather un-trustworthy. In isolation this would not present an issue but if taken in tandem could “could” result in a particular piece of email being falsely flagged as SPAM which if the score was high enough would then result in that email being blocked from delivery.

Those Databases have been removed from from our battery of tests.

Also we have stopped the server from adding the prefixes SPAM-Low and SPAM-Med from the subject line of suspect emails. The filters are doing a good enough job in identifying and stopping real SPAM that generally those flagged with the pre-fix might look “SPAMMY” but weren’t.

Checking the current stats:

Delivered
	Last 5 min.	Last hour	Last 24 hours
Local	32	239	4404
Remote	4	75	2214
Total	36	314	6618

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Incoming Spam
	Last 5 min.	Last hour	Last 24 hours
Spam-Low	2	15	287
Spam-Med	1	10	138
Spam-High	9	60	1318
Blocked	23	313	9310

---

Greylisting
	Last 5 min.	Last hour	Last 24 hours
Blocked	18	265	5557
Allowed	10	196	3231

So total stopped SPAM in the past 24 hours has been 16,185 pieces of mail with 4,404 pieces delivered to your in-boxes.

This entry was posted on Thursday, April 19th, 2007 at 3:16 pm and is filed under SysAdmin Notices. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.