Quoting Phillip Hofmeister ([EMAIL PROTECTED]): > While I am sure finding out whose is bigger is exciting to you. I > feel comfortable in speaking for the rest of the list when I say this > thread has become WAY OT.
I'm surprised that an allegation that SPF -- highly relevant to SMTP security -- is "vapourware", not to mention refutations of that assertion, are off-topic. Nonetheless, I apologise for reacting with irritation to Michael's claim to that effect: It's just that I expected better from a Security Team member. Much better. Why is SPF important? Because it eliminates joe-jobs. That is, it allows mail admins to absolutely validate the envelope return path -- significant because spammers have recently gotten around to forging sender envelope information, allowing forged mail that appears to be credibly "from" your domain or mine, etc. -- and as such began defeating even quite good security regimes. Why is it not "vapourware"? Because prepackaged kits exist to trivially add support to -=all=- of common MTAs: Postfix, Exim, sendmail, qmail, Courier-MTA, and MS-Exchange Server. I posted the link twice earlier in the conversation, well before Michael dismissed it as "vapourware". Here it is again: http://spf.pobox.com/downloads.html If using Exim4 on Debian, the required daemon (perl module Mail::SPF::Query) is available as Debian package libmail-spf-query-perl . The Exim4 ACL that invokes it can be found on the above-cited page, and a SysVInit script can be pulled down from http://www.jcdigita.com/eximconfig/ . If all that's vapourware, then it's amazing how much functional and well-debugged vapourware can be located in three minutes of googling. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]