Showing results 1 to 6 of 6

August 23, 2015 By Alt-N Technologies

SecurityGateway for Email Servers

SecurityGateway for Email Servers combines nearly two decades of email security expertise with proven security technologies to protect...

October 25, 2007 by

Why spam can only be managed, not ended

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.

April 11, 2005 by

Fix SMTP and leave port 25 alone for the sake of spam

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?

February 3, 2005 by

Blacklists rendered useless as spammers leap ahead

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.

August 19, 2015 By AdminSystem Software

Domainkeys/DKIM for IIS/Exchange Server

With this tool, your IIS SMTP Service and Exchange Server will be enabled to add DomainKeys/DKIM signature to outgoing emails from...


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