Zitat von Binarus via Info-cyrus <info-cyrus@lists.andrew.cmu.edu>:
Dave, On 04.04.2016 13:22, Dave McMurtrie wrote:the messages which are being sent from this mailing list's server don't seem to be protected by SPF or signed by DKIM. Are there plans to implement at least one of these in the near future?We currently have no plans to implement either, but I can put it on our list of things to do.Thank you very much for considering.Due to the exponential increase of spam, we generally have to reject all messages which are not secured by SPF or DKIM, and we know a lot of other people who do the same (by the way, this has proven to be extremely effective in our case). When our MTA encounters such a message, it rejects it and returns a bounce message to the pretended sender, notifying him about the problem.
You are for sure aware that neither SPF nor DKIM are able or designed to fight Spam. In fact more than half of the Spam reaching our inboxes are valid according DKIM/SPF so we even might reduce spam by rejecting DKIM/SPF signed mail. DKIM/SPF does only include that the sending server is mandated by DNS to send mail for the given domain and this is easily done with all modern spammer tools.
But this is also OT here Regards Andreas
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