I think the problem might be NLB. When I try to telnet to the virtual IP w/ port 25,110 or 143, the connection times out immediately. [root@glamon etc]# telnet 10.117.1.25 25 Trying 10.117.1.25... Connected to glafe.domain.com (10.117.1.25). Escape character is '^]'. Connection closed by foreign host. What's the correct config for NLB and Exchange 2000 FE server? -Devon _______________________ Confidentiality Notice: The information contained in this message may be legally privileged and confidential information intended only for the use of the individual or entity named above. If the reader of this message is not the intended recipient, or the employee or agent responsible to deliver it to the intended recipient, you are hereby notified that any release, dissemination, distribution, or copying of this communication is strictly prohibited. If you have received this communication in error please notify the author immediately by replying to this message and deleting the original message. Thank you.