turn on spf filtering with postfix and centos 7

After running my new server for a while, I was noticing an unusually-high level of bogus email arriving in my inbox – mail that was being spoofed to look like it was coming from myself (to myself). After a great deal of research, I learned there is a component of the {{DNS}} specification that allows …
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group admin in the era of facebook

Along the difficulties of initially building a good group/community, comes the hassles of managing said [virtual] community – especially on the book of the face. I am a coadmin on the Ontario & Western Railways Historical Society Inc Facebook group. My friend Peter is a coadmin of the Linux Mint group. Something both of us have noticed …
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