Tag: Dnsbl
Time to give up on GFI/SORBS?
A year ago, in november 2009, GFI Software acquired spam blocklist provider SORBS promising improvements to the responsiveness and data quality problems. Has anything changed? (Dec 03, 2010)
Test your mail server security infrastructure with Email Security Grader
Email Security Grader is a free online tool which helps IT and mail administrators evaluate the security of their mail infrastructure. The web site regroups several important tests (spam blacklist, open relay, mx records, smtp/pop3/imap authentication), educates users and makes recommendations for each aspect of email security. (Nov 01, 2010)
Deep header inspection: use with caution
Some anti-spam tools will actually look at the reputation of IP addresses in each of the received headers of an email. Reputation mechanisms usually involve multiple sources, e.g., DNSBLs and Honeypot-driven reputation services. (Apr 19, 2010)
What is a Honeypot in Email Security Terms?
A Honeypot is, by definition, a decoy or a trap whose purpose is to detect and identify unauthorized use in order to prevent breaches. In Email Security, a Honeypot is a SMTP server setup to process a single domain (or multiple domains) to gather emails all day long. (Dec 18, 2009)





