[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [FW-1] Spam blacklist...How to stop open relays at the firewa ll(FW-1 ) HELP!!!!!!!!!
What type of mail relay are you using? If it is Exchange you can refuse relaying very easily except for appropriate inbound mail. I am sure Sendmail has similar features. Tim Anderson -----Original Message----- From: Reed Mohn, Anders [mailto:[email protected]] Sent: Wednesday, October 24, 2001 3:48 AM To: [email protected] Subject: Re: [FW-1] Spam blacklist...How to stop open relays at the firewa ll(FW-1 ) HELP!!!!!!!!! Sorry for pointing out the obvious here, but: The best way is, of course, to fix the mailserver. One day, someone will find a loophole through the firewall, and you will be up that creek again. Cheers, Anders :) -----Original Message----- From: Timothy K. Cornelius [mailto:[email protected]] Sent: 23. oktober 2001 23:27 To: [email protected] Subject: Re: [FW-1] Spam blacklist...How to stop open relays at the firewall(FW-1 ) HELP!!!!!!!!! At this time our internet mailserver(behind the FW-1) has been designated as an open relay mailserver and has been blacklisted by several spam blocker websites( www.orbz.org <http://www.orbz.org> is one of them) after reading up on how to stop this at the firewall I added two rules on the firewall with services w/resources. the resource(SMTP->our-mail-only-in) is SMTP and the match is coming in the sender is * and the recipient is *loi.org. The other is going out, the resource(SMTP->our-mail-only-out) is SMTP and the match is sender is *loi.org and the recipient is * I have also created a rule below these two that denies and mail service plus 2 services with resources (SMTP->openrelay-in and SMTP->openrelay-out) these are the same as the first two. Is this not the correct way to handle stopping an open relay mailserver or is there a better way? PLEASE HELP ME ASAP!!!!!!!!!!!!!!! our mail services are just about non-existent, except my Firewall email groups. 1 Source: any Dest.: mailserver Service: SMTP->our-mail-only-in Action: accept 2 Source:mailserver Dest: any Service:SMTP->our-mail-only-out Action: accept Thanks in advance, Tim --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.286 / Virus Database: 152 - Release Date: 10/9/2001 --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.286 / Virus Database: 152 - Release Date: 10/9/2001 =============================================== To unsubscribe from this mailing list, please see the instructions at http://www.checkpoint.com/services/mailing.html =============================================== =============================================== To unsubscribe from this mailing list, please see the instructions at http://www.checkpoint.com/services/mailing.html ===============================================
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