OT: Postfix pre-MailScanner Policy Daemon

Peter Russell pete at ENITECH.COM.AU
Wed Jul 6 01:36:29 IST 2005

    [ The following text is in the "ISO-8859-1" character set. ]
    [ Your display is set for the "US-ASCII" character set.  ]
    [ Some characters may be displayed incorrectly. ]

>> Another option I use is to only allow in valid email addresses and the 
>> MTA. I drop over 70% of my email that way..and don't get any FP's from 
>> RBLs ;-)

On my second MX i drop 97% of inbound mail this way. Its amazing, all i 
have to do is not accept email that isnt address to our users.

> Agreed and every MTA should reject non users at SMTP stage (But not all 
> do!). Where this isn't possible, I also drop non-deliverable 
> Mailer-Daemon messages after a much shorter queue period. No point 
> clogging the queue up.

How do you do this in postfix?

>> Yes in theory you are open to email guessing attacks, but then my SA 
>> and  MS are very well setup so this doesn't add much risk :-)
>> No idea how you do this in PF as I run Exim....

------------------------ MailScanner list ------------------------
To unsubscribe, email jiscmail at jiscmail.ac.uk with the words:
'leave mailscanner' in the body of the email.
Before posting, read the Wiki (http://wiki.mailscanner.info/) and
the archives (http://www.jiscmail.ac.uk/lists/mailscanner.html).

Support MailScanner development - buy the book off the website!

More information about the MailScanner mailing list