What services does UW provide to help manage spam?
Information Technology provides several services on the central e-mail gateway servers to help manage spam at UW: • Blocking (Blacklisting) Known Spammer E-mail UW uses Message Transfer Agent (MTA) level IP blocking from Sophos to help combat spam by rejecting messages originating from known spammer IP addresses, so they never reach user inboxes. The addresses are blocked, or blacklisted, by the Sophos software and other blacklisting services. The catalog of blacklisted IP addresses is updated frequently throughout each day. Any e-mail that is rejected by UW’s blacklist will be returned to the sender with an explanatory error message, so that senders who are inadvertently blocked can contact us for assistance. As with all anti-spam systems, none are perfect. It is possible that some e-mail from blacklisted sites should be allowed. Information Technology maintains a centrally managed address list of IP addresses that should not be blocked from the UW network (whitelisted sites). If you
