Mail Server Rejecting all Messages – Check your Blacklists relays.ordb.org is listing the WORLD

Monday, March 31st, 2008

It’s unusual for mail servers to suddenly start rejecting messages internally and from external sources. That’s exactly what I saw though over the weekend. A mailserver running mdaemon on Windows 2000 was rejected ALMOST every message that was sent it’s way whether it was an internal mail sender and recipient or external sender to internal […]

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