Exchange Server Toolbox is a plug-in for the Microsoft Exchange Server 2003-2013. With Exchange Server Toolbox, you can handle all...
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Now that DKIM is established as the leading method for sender authentication, it's clear that it doesn't really claim to do all that much, and fails even at that.
Years ago when I was still a bit more naive, I thought we could end the spam dilemma if we would simply implement domain-level sender authentication using digital signatures. In fact when David Berlind wrote "Why spam could destroy the Internet" in November 2002, Berlind quoted me saying that every domain's official SMTP server should digitally sign each message to prove the email came from that domain.
Larry Seltzer of eWeek, whom I have great respect for and usually agree with, wrote this article on dealing with spam using the controversial tactic of blocking all outbound port 25 access.? The logic behind this is that the vast majority of spam in the world comes from "zombies" (millions of computers that have been hijacked by professional hackers and spammers?
Spammers are continuing to stay one step ahead of the antispam community as a recent innovation makes blacklists - where e-mails from suspicious sources are blocked -- virtually useless.On Thursday, anti-spam organisation SpamHaus, which compiles blacklists that block around eight billion e-mail messages a day, reported that spammers have started sending spam via the mail server of an infected PC's Internet service provider.
You asked David Berlind to organize an industry-wide anti-spam consortium, and now it looks like you're going to get it. Can the SMTP network be saved?
SpamFilter is used by ISPs and companies running their SMTP servers. It is designed to be a proxy to your incoming SMTP server receiving...
Measures to combat spam passing through BT mail servers are also trapping and deleting legitimate emails from BT's ADSL customers