Please note that this book is based on is based on Postfix 2.1, later versions of Postfix have new daemons not discussed in the book. This chapter describes how ...
It's easy to build redundant systems when time and money are limitless. When you have neither, or you are designing a personal system, often backups and redundancy are parts of the project you plan to ...
The server suddenly (just this afternoon) started refusing external email because our Barracuda is allegedly listed in zen.spamhaus.com (though checking the IP on the site says it's clear, so the ...
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