This mail is probably spam. The original message has been attached along with this report, so you can recognize or block similar unwanted mail in future. See http://spamassassin.org/tag/ for more details. Content preview: Dear Friends, To my best knowledge Porous Asphalt Mixtures (about 20% voids or higher) are often used as a solution for highway noise reduction problems. Are you aware of any agency that uses, for the same purpose SMA mixtures? [...] Content analysis details: (5.10 points, 5 required) SUBJ_ALL_CAPS (1.1 points) Subject is all capitals RCVD_IN_ORBS (0.5 points) RBL: Received via a relay in orbs.dorkslayers.com [RBL check: found 216.66.218.66.orbs.dorkslayers.com.] RCVD_IN_OSIRUSOFT_COM (0.6 points) RBL: Received via a relay in relays.osirusoft.com [RBL check: found 216.66.218.66.relays.osirusoft.com.] X_OSIRU_OPEN_RELAY (2.9 points) RBL: DNSBL: sender is Confirmed Open Relay