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Open Relay : Exchange 5.5
Name: Jonathan Date: December 15, 2003 at 08:39:44 Pacific OS: Win NT 4 CPU/Ram: 512
Comment:
I've got alot of messages per day originating from "<>". We've got an Exchage 5.5 SP3. I've checked both "Hosts and clients that successfully authenticate" and "Hosts and clients with these IP addresses" in the Routing Restrictions button.
Name: rain3d Date: December 15, 2003 at 13:27:35 Pacific
Reply:
The messages that come from <> are Non-delivery reports, which does not make your server an open relay. Check your outbound mail queues to make sure that they are not full.
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Response Number 2
Name: Jonathan Date: December 16, 2003 at 07:24:04 Pacific
Reply:
Non-delivery reports = what? Can you give an example of how these <> get there?... Spammers...automatic email generation??? I regularly have 20-50 "<>" messages in the Outbound messages awaiting delivery.
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low disk space due to cat...
