using Vispan with MailScanner
Alex Neuman van der Hans
alex at nkpanama.com
Thu Dec 7 00:24:34 GMT 2006
YMMV. Check your logs for a few months/weeks back, grep for IP
addresses, then "sort -u" the list, and look for major ISP IPs.
You can also use mailwatch to see who your biggest senders/receivers
are, then find out what their MX's are and whitelist them as well.
As long as the iptables command is -A DROP or -A REJECT and you've -I
ACCEPT'ed (meaning they'll go to the top of the table and override), you
should be all set.
.. that's what I think I'd do in that situation.
Michele Neylon :: Blacknight wrote:
> Brad Beckenhauer wrote:
>> Using Postfix and Vispan.
>> I block it at the firewall. Keeps the log file size down and iptable
>> dropped connections to not get reflected in the in the graphs.
> Surely that's a bit dangerous?
> What if a major ISP's SMTP is being abused?
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