Within hosts.deny how do you have your line define? I use it to block people trying to ssh to my by adding a line like this... sshd: xxx.xxx.xxx.xxx You may have to do smtpd: xxxxxx.xxx.xxx I know you are using postfix and found the access file to me that is the best pratice to allow and deny access postfix. Chuck Payne On 6/3/09, Chema wrote:

Look TCP wrappers info : "A TCP wrapped service is one that has been compiled against the libwrap.a library" Maybe, you can use xinetd

Anyway, you always can block incoming traffic with netfilter (iptables)

2009/6/3 Leen de Braal :

...

Hi all,

I am having some trouble with one IP, that is bugging one of my servers for almost a week now with virusses. I have been putting this IP in /etc/hosts.deny, but it is not blocked when connecting to postfix.

Why is this? Is it not possible to block traffic to port 25 this way?

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