Hi all, Please help. We are getting a HUGE amount of spam. I suspect this shut down our Exchange services. I have noticed a lot of messages from postmaster@xxxxxxxxxxxx in the Queues folder...and I mean a lot. As a result our outbound email was slow getting to its destination. I have deleted the postmaster messages to the fictional/spoofed domains and outbound email is now fine. I have also noticed that the Queue is set to retry for 3 days...WOW this is crazy...what are your recommendations, 12 hours? 24 hour? The people that set this up must have kept the defaults. We run GFI v11 to block spam...so it is catching a lot of it but not all. This issue shut down all exchange services and I had to reboot and get rid of the messages in the queues. Help!