We have been doing pretty well with spam lately, with a mixture of SpamAssassin (4.5+ gets marked, 7.0+ gets rejected) and black lists. I receive very few spam messages. There are a few that get placed automatically in my Junk E-mail folder.
Today I discovered that one of our users receives 500+ spam a day. I was very surprised. However, it appears she is forwarding one of her personal e-mail addresses to our system. I looked at the source of many of these messages and they are for the most part scored really low. We are not set to auto-accept anything from the sending domain or IP.
I am going through and submitting these messages as Spam and creating custom rules for many of the nasties in the subject.
1. How do most people update their SpamAssassin rules? Do you simply download updated .cf files from someplace online (per a few forum posts on this subject), or do you update SpamAssassin itself somehow (OS X 10.4.x server).
2. When a user clicks on the "Spam" button in webmail, what exactly happens with regards to the future scoring of that message? I know it is moved to the Junk E-mail folder.
3. How do I determine what the spam trap address is?
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