Exchange Group, I am getting the following error on my Windows 2000 SP2 box running Exchange 5.5 SP2 to my remote offices. I have included an error message below. We are an NT domain and we use external DNS servers. Our Exchange box has external DNS entries. I've added an LMHOSTS file that contains the other Exchange servers but we are still receiving this error. This server isn't multihomed and the pipes b/w offices are 256K and 512K. We have about 170 users. Any advice would be greatly appreciated. Mail is being delivered b/w offices without error. Sometimes the queues will stack up. An RPC communications error occurred. Unable to bind over RPC. Locality Table (LTAB) index: 201, NT/MTA error code: 1722. Comms error 1722, Bind error 1722, Remote Server Name FLONTSVR_FILE [MAIN BASE 1 500 %10] (14) Thank you again, Tina Newhouse ccn@xxxxxxxx CONFIDENTIAL & PRIVILEGED Unless otherwise indicated or obvious from the nature of the above communication, the information contained herein may be an attorney-client privileged and confidential information/work product. The communication is intended for the use of the individual or entity named above. If the reader of this transmission is not the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error or are not sure whether it is privileged, please immediately notify us by return e-mail and destroy any copies, electronic, paper or otherwise, which you may have of this communication.