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On 3/4/2015 12:45 PM, Dave McGuire wrote: > There is. But I already have a firewall, running on bulletproof > hardware that doesn't depend on spinning disks. I don't want to add > ANOTHER firewall when I already have a perfectly good one. Besides, my > mail server is built for...serving mail. Not being a firewall. You can implement whatever type of security you are

dnsbl's are a popular method to prevent listed ips from making connections to mta software. cf. postscreen_dnsbl_sites in postfix Would it be possible to introduce such a feature in dovecot, so that connections can be denied based on a dnsbl lookup (where the precise dnsbls used are configurable)? John

Hi has someone a script which can filter out dictionary attacks from /var/log/maillog and notify about the source-IPs? i know about fail2ban and so on, but i would like to have a mail with the IP address for two reasons and avoid fail2ban at all because it does not match in the way we maintain firewalls * add the IP to a distributed "iptables-block.sh" and distribute it to any

All, Thank you for having this list, and I have a question regarding why postfix is not handing off delivery to Dovecot to virtual users. Here is all I can offer since I am not at my server: *Here is the debug information for my postfix setup:* [code] Mar 13 20:23:55 andromeda postfix/smtpd[15316]: name_mask: ipv4 Mar 13 20:23:55 andromeda postfix/smtpd[15316]: inet_addr_local: configured 2