For those who already have existing materials [Free]The basics of distinguishing name resolution and communication endpoints ...

SPF is an emerging antiforgery standard that aims to prevent worms, viruses and spam from forging arbitrary e-mail addresses as the envelope sender in SMTP. SPF has two parts: domain administrators ...

Organizations have a right to be concerned about the never-ending flood of unwanted email messages, but it wasn't until about a decade ago that emerging standards for fighting spam, phishing and other ...