A database of open relay email servers, provided until late 2006 as a voluntary service to help email administrators block spam, has suddenly re-activated but is returning every address queried as being on its blacklist.
Administrators of email systems should have stopped querying the database (relays.ordb.org) in December 2006 when it shut down, but some failed to do so. That was no problem until today, queries were simply rejected, but now the address of any email server presented is being returned as an open relay. This results in the querying system rejecting all incoming mails from that server.
Wednesday, March 26, 2008