It has been said many times in many places. If you're running postfix be sure you aren't a backscatter source. Set: parent_domain_matches_subdomains =
And possibly this as well: relay_domains = This came up because I didn't explicitly config it (why aren't there reasonable defaults for postfix yet!?!?). The new PLUG server sent out 455 backscatter SPAM before I caught it. mail from: [email protected] 250 2.1.0 Ok rcpt to: [email protected] 550 5.1.1 <[email protected]>: Recipient address rejected: User unknown rcpt to: [email protected] 250 2.1.5 Ok Wooops! [email protected] is undeliverable. --------------- In other news, does anyone know of a presenter that would be willing to do July 8th? We don't have anyone for July yet. -Ryan /* PLUG: http://plug.org, #utah on irc.freenode.net Unsubscribe: http://plug.org/mailman/options/plug Don't fear the penguin. */
