Will milter-greylist solve my directory harvest attacks?

Matt Kettler mkettler at EVI-INC.COM
Thu Dec 15 22:36:52 GMT 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. ]

shuttlebox wrote:
> On 12/15/05, *Matt Kettler* <mkettler at evi-inc.com
> <mailto:mkettler at evi-inc.com>> wrote:
>     The BAD_RCPT_THROTTLE options is probably the most effective here.
>     Here's a
>     quick sendmail.mc <http://sendmail.mc> fragment for it:
>     #after 15 invalid recipients, start slowing them down with
>     #1 second sleeps
>     define(`confBAD_RCPT_THROTTLE',15)
> But the gateway doesn't know if the recipient is valid or not, only if
> it can deliver it to the next server. Do you mean together with
> milter-sender or similar?

What do you mean by "can deliver it to the next server"?

Does it really know it can deliver that address to the next server? or does it
just know it should forward the domain to the next server?

------------------------ 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