Blocking email from specific IPs

2016-05-14 Thread Noah
Hi there, I am hoping to have a blacklist file that stops postfix from accepting email from specific IP or IP ranges. I follow this tutorial and it does not working. I still receive email from the IP addresses in the range: http://www.linuxlasse.net/linux/howtos/Blacklist_and_Whitelist_wit

Re: Blocking email from specific IPs

2016-05-14 Thread Christian Kivalo
On 2016-05-14 19:37, Noah wrote: Hi there, I am hoping to have a blacklist file that stops postfix from accepting email from specific IP or IP ranges. I follow this tutorial and it does not working. I still receive email from the IP addresses in the range: http://www.linuxlasse.net/linux/ho

Re: Blocking email from specific IPs

2016-05-14 Thread Viktor Dukhovni
> On May 14, 2016, at 3:21 PM, Christian Kivalo > wrote: > >> smtpd_recipient_restrictions = >> ... >> check_client_access >> hash:/etc/postfix/client_checks, >> ... >> $ cat /etc/postfix/client_checks >> ... >> 138.185.116.0/24 REJECT > > This looks correct.

Re: Blocking email from specific IPs

2016-05-14 Thread Patrick Ben Koetter
* Viktor Dukhovni : > > > On May 14, 2016, at 3:21 PM, Christian Kivalo > > wrote: > > > >> smtpd_recipient_restrictions = > >> ... > >> check_client_access > >> hash:/etc/postfix/client_checks, > >> ... > >> $ cat /etc/postfix/client_checks > >> ... > >> 138.185.116.0/

Re: Blocking email from specific IPs

2016-05-14 Thread Christian Kivalo
On 2016-05-14 21:27, Viktor Dukhovni wrote: On May 14, 2016, at 3:21 PM, Christian Kivalo wrote: smtpd_recipient_restrictions = ... check_client_access hash:/etc/postfix/client_checks, ... $ cat /etc/postfix/client_checks ... 138.185.116.0/24 REJECT

Re: Blocking email from specific IPs

2016-05-14 Thread jdebert
On Sat, 14 May 2016 10:37:26 -0700 Noah wrote: > Hi there, > > I am hoping to have a blacklist file that stops postfix from > accepting email from specific IP or IP ranges. > [snip] Do you want to block these because of spam or some other reason? If for spam, then it is better to use firewall

Re: Blocking email from specific IPs

2016-05-14 Thread Noah
HI there, NASA might have an open relay. I was getting spam from them. At the moment i want to keep these rules in postfix instead of a long firewall rule. I am following the rules as see in cidr_table(5) works well now. I can see the rejects in the logs. Thanks for the responses. Cheers,

Re: Blocking email from specific IPs

2016-05-14 Thread Alice Wonder
On 05/14/2016 10:37 AM, Noah wrote: Hi there, I am hoping to have a blacklist file that stops postfix from accepting email from specific IP or IP ranges. I follow this tutorial and it does not working. I still receive email from the IP addresses in the range: http://www.linuxlasse.net/linux/h

Re: Blocking email from specific IPs

2016-05-14 Thread Noah
Hi, Yeah that is why I prefer postfix config have the IP block or specific host. At least I have a clear log of the reject. If I have it in iptables there will be a log but feel its clearer in postfix what the intent was. Cheers, Noah On 5/14/16 4:25 PM, Alice Wonder wrote: On 05/14/20