A blog entry at Word To The Wise talks about a new exploit discovered in the IronPort A60 series:
IronPort Open Relay Vulnerability
Systems Affected
IronPort A60 running software version 2.5.4-005. According to IronPort, later devices and software versions using the same filtering mechanisms are vulnerable.
Overview
In recent weeks, one or more rogue spammers have been using misconfigured IronPort […]
The Ferris Research blog has an entry on ISPs and whether spam blocking is at odds with the common carrier status that seems to protect them from certain liabilities:
This debate is happening again. Thanks to the good work done by MAAWG and others, ISPs are being encouraged to set up outbound spam filtering, to prevent […]
Recently Digg linked to an article titled ‘Comcast Caught Filtering Political E-Mails‘.
The short version is that an online special interest group noticed that they were having issues with mail not being delivered when sent to Comcast addresses. They then worked their way though the Comcast abuse department to finally find that Symantec’s Brightmail was filtering […]
