I think your rule should work. Are you sure there is not another rule above that one in the list of rules, that allows the inbound connection? In other words the block rule has to be above the rule allowing traffic on port 25 to your mail server.
-- Steve Yates ITS, Inc. -----Original Message----- From: List <list-boun...@lists.pfsense.org> On Behalf Of Alberto José García Fumero Sent: Friday, May 18, 2018 9:42 AM To: pfSense Support and Discussion Mailing List <list@lists.pfsense.org> Subject: [pfSense] How could I block messages trying to pass as from my net? Hi all. I use PfSense 2.2.1. Of course I know it would very convenient to upgrade, but right now it isn't possible. Im trying to block spam (for instance, from 185.234.217.232). As far as I know, it's trying to pass as a message from my very net: Transcript of session follows. De: Mail Delivery System <mailer-dae...@partagas.ettpartagas.co. cu> Para: Postmaster <postmas...@ettpartagas.co.cu> Asunto: Postfix SMTP server: errors from unknown[185.234.217.232] Fecha: Fri, 18 May 2018 10:10:39 -0400 (CDT) Out: 220 partagas.ettpartagas.co.cu ESMTP Partagas In: EHLO 190.6.79.98 Out: 250-partagas.ettpartagas.co.cu Out: 250-PIPELINING Out: 250-SIZE 15240000 Out: 250-ETRN Out: 250-STARTTLS Out: 250-ENHANCEDSTATUSCODES Out: 250-8BITMIME Out: 250 DSN In: AUTH LOGIN Out: 503 5.5.1 Error: authentication not enabled Session aborted, reason: lost connection For other details, see the local mail logfile but the MTA correctly rejects it as a fake. I have created an alias list (rechaza) in the menu Firewall/Aliases, where I put all the addresses known to be spammers, and tried to reject them with the rule in Firewall/Rules/WAN Action: Block Interface: WAN TCP/IP version: IPV4 Protocol: TCP Source: (single hots or alias) rechaza Destination: 190.6.79.98 Destination port range: any but I can not stop the spam right in the WAN interface. How could I create a convenient rule? TIA, Fumero -- M.Sc. Alberto García Fumero Usuario Linux 97 138, registrado 10/12/1998 http://interese.cubava.cu No son las horas que pones en tu trabajo lo que cuenta, sino el trabajo que pones en esas horas. _______________________________________________ pfSense mailing list https://lists.pfsense.org/mailman/listinfo/list Support the project with Gold! https://pfsense.org/gold _______________________________________________ pfSense mailing list https://lists.pfsense.org/mailman/listinfo/list Support the project with Gold! https://pfsense.org/gold
