Here are the mail logs detailing mail messages that were rejected by our spam filters. Users with an istop.com userid can bypass the spam filters by having mail sent to userid@ca.istop.com. If you have your own domain name contact support@istop.com if you wish to have the spam filters turned off for your domain. Jan 27 00:00:14 ns postfix/smtpd[7963]: reject: RCPT from sklav.mtl.istop.com[66.11.160.211]: 554 <shorewall-users@lists.shorewall.net>: Relay access denied; from=<sklav@istop.com> to=<shorewall-users@lists.shorewall.net>