sender check
I have a barracuda server that receives mails, filter them and forward to a linux system running postfix. Both machine have a public IP (static). The linux system is configured to be used as SMTP for sasl authenticated users as well, besides to be used as SMTP for the people on $mynetworks (permit_mynetworks in the smtpd_recipient_restrictions). Unfortunatley, some spammers, have found it and use to spam local recipients using the linux machine, avoiding so to be filtered through the barracuda system. I'm wondering if there is a way to allow OLNY local users or users belonging to the domains hosted by the linux server to use SMTP. Thanks MG
Re: sender check
Marco Giardini: I have a barracuda server that receives mails, filter them and forward to a linux system running postfix. Both machine have a public IP (static). The linux system is configured to be used as SMTP for sasl authenticated users as well, besides to be used as SMTP for the people on $mynetworks (permit_mynetworks in the smtpd_recipient_restrictions). Unfortunatley, some spammers, have found it and use to spam local recipients using the linux machine, avoiding so to be filtered through the barracuda system. I'm wondering if there is a way to allow OLNY local users or users belonging to the domains hosted by the linux server to use SMTP. To permit only local systems (incl. barracuda box), or users that have a relationship with your server: smtpd_recipient_restrictions = permit_mynetworks permit_sasl_authenticated reject Wietse
Re: sender check
* Wietse Venema wie...@porcupine.org [2009-11-26 12:20:19 -0500]: Marco Giardini: I have a barracuda server that receives mails, filter them and forward to a linux system running postfix. Both machine have a public IP (static). The linux system is configured to be used as SMTP for sasl authenticated users as well, besides to be used as SMTP for the people on $mynetworks (permit_mynetworks in the smtpd_recipient_restrictions). Unfortunatley, some spammers, have found it and use to spam local recipients using the linux machine, avoiding so to be filtered through the barracuda system. I'm wondering if there is a way to allow OLNY local users or users belonging to the domains hosted by the linux server to use SMTP. To permit only local systems (incl. barracuda box), or users that have a relationship with your server: smtpd_recipient_restrictions = permit_mynetworks permit_sasl_authenticated reject Wietse i do use: smtpd_recipient_restrictions = permit_mynetworks permit_sasl_authenticated reject_unauth_destination but it seems from the log that spammer still send me and to other local users spam mails. Humm...strange mg
Re: sender check
On Thu, 26 Nov 2009 18:29:00 +0100 Marco Giardini m...@tecnogi.com wrote: * Wietse Venema wie...@porcupine.org [2009-11-26 12:20:19 -0500]: Marco Giardini: I have a barracuda server that receives mails, filter them and forward to a linux system running postfix. Both machine have a public IP (static). The linux system is configured to be used as SMTP for sasl authenticated users as well, besides to be used as SMTP for the people on $mynetworks (permit_mynetworks in the smtpd_recipient_restrictions). Unfortunatley, some spammers, have found it and use to spam local recipients using the linux machine, avoiding so to be filtered through the barracuda system. I'm wondering if there is a way to allow OLNY local users or users belonging to the domains hosted by the linux server to use SMTP. To permit only local systems (incl. barracuda box), or users that have a relationship with your server: smtpd_recipient_restrictions = permit_mynetworks permit_sasl_authenticated reject Wietse i do use: smtpd_recipient_restrictions = permit_mynetworks permit_sasl_authenticated reject_unauth_destination but it seems from the log that spammer still send me and to other local users spam mails. Humm...strange Not at all; try reading what Wietse wrote. reject, NOT reject_unauth_destination. mg -- John
Re: sender check
Marco Giardini: * Wietse Venema wie...@porcupine.org [2009-11-26 12:20:19 -0500]: Marco Giardini: I have a barracuda server that receives mails, filter them and forward to a linux system running postfix. Both machine have a public IP (static). The linux system is configured to be used as SMTP for sasl authenticated users as well, besides to be used as SMTP for the people on $mynetworks (permit_mynetworks in the smtpd_recipient_restrictions). Unfortunatley, some spammers, have found it and use to spam local recipients using the linux machine, avoiding so to be filtered through the barracuda system. I'm wondering if there is a way to allow OLNY local users or users belonging to the domains hosted by the linux server to use SMTP. To permit only local systems (incl. barracuda box), or users that have a relationship with your server: smtpd_recipient_restrictions = permit_mynetworks permit_sasl_authenticated reject Wietse i do use: smtpd_recipient_restrictions = permit_mynetworks permit_sasl_authenticated reject_unauth_destination I wrote: vv permit_mynetworks permit_sasl_authenticated reject ^^ Wietse
Re: sender check
* Marco Giardini m...@tecnogi.com: smtpd_recipient_restrictions = permit_mynetworks permit_sasl_authenticated reject Wietse i do use: smtpd_recipient_restrictions = permit_mynetworks permit_sasl_authenticated reject_unauth_destination but it seems from the log that spammer still send me and to other local users spam mails. Humm...strange Not strange. Look at the difference in the two configs. The solution is right there. -- Ralf Hildebrandt Geschäftsbereich IT | Abteilung Netzwerk Charité - Universitätsmedizin Berlin Campus Benjamin Franklin Hindenburgdamm 30 | D-12203 Berlin Tel. +49 30 450 570 155 | Fax: +49 30 450 570 962 ralf.hildebra...@charite.de | http://www.charite.de
