On Feb 22, 2014, at 12:18 PM, Eric Shubert e...@shubes.net wrote:
It's not a terrible idea though. I wonder if fail2ban could be configured to
count DENIED_RDNS messages for each IP address, and if there were more than a
certain number of failed attempts in a given time period, then block
On 02/24/2014 09:46 AM, Angus McIntyre wrote:
On Feb 22, 2014, at 12:18 PM, Eric Shubert e...@shubes.net wrote:
It's not a terrible idea though. I wonder if fail2ban could be configured to
count DENIED_RDNS messages for each IP address, and if there were more than
a certain number of failed
Hi folks,
Is this a viable option please?
90% of the SPAM I am getting lately always returns
DENIED_RDNS_MISSING
or
DENIED_RDNS_RESOLVE
In all cases the email From User is the same as the Recipient
but with prefix or postfix characters.
Can we perhaps use this to build a script to test
