On Wed, 2010-06-30 at 02:02 -0700, Daniel Lemke wrote: > For a short time we receive several hundreds of non delivery notifications > and other failure notices on one of our mailboxes. > You've been joe jobbed by a spammer who forged your address as the sender of his junk and then randomly generated user names for the domains he targeted. By setting up a valid SPF record for your own domain you will allow the spam targets to detect forged sender addresses and avoid sending non-delivery notifications to you.
Find out about SPF: http://www.openspf.org/ SPF test tools: http://www.kitterman.com/spf/validate.html This worked for me: as soon as I had a valid SPF record the joe jobbing showers of messages dried up. Martin
