Hi guys (and girls),
I have been using MX Logic for years with different companies that I work for. My current employer is still using Exchange 5.5 and I don't see upgrading that anytime soon due to budget reasons. We are currently MX Logic subscriber, though. I found a lot of invalid relay attack to our Exchange 5.5 server. As MX Logic suggested, locking down the server will eliminate this problem. MX Logic's IP Subnet is 208.65.144.0/21. I had lock down Exchange 2003 before by making the entries in Smart Host, but I can't seem to find way to do lock down with Exchange 5.5. Can someone give me some pointers? Thanks a bunch!
- HK
I have been using MX Logic for years with different companies that I work for. My current employer is still using Exchange 5.5 and I don't see upgrading that anytime soon due to budget reasons. We are currently MX Logic subscriber, though. I found a lot of invalid relay attack to our Exchange 5.5 server. As MX Logic suggested, locking down the server will eliminate this problem. MX Logic's IP Subnet is 208.65.144.0/21. I had lock down Exchange 2003 before by making the entries in Smart Host, but I can't seem to find way to do lock down with Exchange 5.5. Can someone give me some pointers? Thanks a bunch!
- HK
