> -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf > Of Mark Martinec > Sent: Tuesday, September 25, 2007 5:16 AM > To: [email protected] > Subject: Re: [AMaViS-user] Marc: use SPF to prevent backscatter? > > > Michael, > I have considered it (specially for the DKIM in case From > matches envelope sender address), but mouss is quite right, > the current use isn't spread widely enough to make much > difference. I'll keep it in mind though. > > Actually, amavisd does suppress bounces (even if configured) > to spam mail coming from Windows machines. The p0f setup must > be operational for this to be possible.
Ah, ok, I had not seen enough additional value using p0f (I turned it off, too much cpu usage for a very small point percentage) and the fact that it really can't figure out the difference between a windows 2000 server and an XP workstation. So, if there a regex that it uses to know when not to bounce? (and I still think if DNS admin bothers to publish spf, dkim, or sender id records we should take the time to not bounce) MAYBE a VERY HIGH score on HARD SPF, high enough to be above threshold (and we can increase its priority, and add it to shortcut list also) Other option is to do SPF hard bounce (5xx and disconnect session) in the MTA, that way no 'bounce' is generated, but rather the sending MTA gets the 5xx, zombie or not.) _________________________________________________________________________ This email has been scanned and certified safe by SpammerTrap(tm). For Information please see http://www.spammertrap.com _________________________________________________________________________ ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ AMaViS-user mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/amavis-user AMaViS-FAQ:http://www.amavis.org/amavis-faq.php3 AMaViS-HowTos:http://www.amavis.org/howto/
