On Thu, Jul 14, 2011 at 06:48:54PM +1200, Don Gould wrote: > OMG can't you people run proper spam filtering on your own mail > servers that filter out the nanog messages that are spam?!
One of the fundamental principles of spam mitigation is that blocking is usually best (in terms of: efficacy, accuracy, resource minimization, and other metrics) when applied as close to the source as possible. In the case of mailing lists, such as this one, it has been a best practice for many years to only permit traffic from subscribers (and optionally, from individually-listed addresses, which are often alternate addresses for subscribers). It is clear that a serious mistake was made during the attempted migration of this list, i.e., this best practice was not followed, thus allowing some number of messages from non-subscribers to reach some number of subscribers. The proper solution to this is most emphatically not to ask the thousands of NANOG subscribers to adjust their mail systems; the proper solution is to continue to employ this best practice. ---rsk
