I use a program called ASSP to filter spam and viruses. It seams to work really well. see http://assp.sourceforge.net for more info.
Dave Quoting Jeff Brenton <[EMAIL PROTECTED]>: > Hello Paul, > > >> If you program the MTA to accept-analyze-drop messages, you risk a > >> false positive not being noticed; if the MTA rejects a legitimate > >> message, the sender will not get a report about the error. > > PJS> What risk of false positives wrt virus-scanning? Are > PJS> virus-scanner so unreliable as to generate false positives? Can > PJS> you back up this assertion? I'd be most interested in hearing > PJS> about this. False positives in virus-scanner usually indicate a > PJS> bug in the signatures. > > I was speaking to the generalized case of filtering, which includes > spam filtering. If a legit message is tagged as spam by an MTA that > then drops it (rather than bouncing), the sender doesn't know about > it, until they realize they never got a response. Since you can't > trust the envelope sender nowadays, bouncing a message after you've > accepted the message and sent a "250 OK" is a bad option. > > I guess the proper way to do this is to receive the message, process > it through all filters, THEN acknowledge the receipt to the sender. I > just don't like the idea of allowing all my bandwidth to be used up > receiving something I could reject earlier in the process... B-) > > False virus positives are less prevalant today than they were 5 or > more years ago. I remember having to disable Norton AntiVirus for a > few weeks in the early 1990's because it insisted that one of the most > popular access programs for CompuServe was a virus... > > -- > Jeff Brenton > Vice President, > Engineered Software Products, Inc > http://espi.com > Questionable web page: http://dididahdahdidit.com > > Liberalism grants you the freedom to advocate any idea*. > * Please see http://www.dididahdahdidit.com/except.php for a > current list of exceptions > > _______________________________________________ > Dbmail mailing list > Dbmail@dbmail.org > https://mailman.fastxs.nl/mailman/listinfo/dbmail >
