Hi, I changed my x400 connectors to an RGC between 2 of my Exchange 5.5\2000 mixed sites last night and all looked OK, mail was flowing fine. The problem I had was with name resolution instead of coming though resolved e.g Dobson, Ian it was coming though as an SMTP mail e.g ian.dobson@xxxxxxxxxxxxxx Are there any obvious reasons for this? Thanks Ian Ian Dobson Nomura International PLEASE READ: The information contained in this email is confidential and intended for the named recipient(s) only. If you are not an intended recipient of this email you must not copy, distribute or take any further action in reliance on it and you should delete it and notify the sender immediately. Email is not a secure method of communication and Nomura International plc cannot accept responsibility for the accuracy or completeness of this message or any attachment(s). Please examine this email for virus infection, for which Nomura International plc accepts no responsibility. If verification of this email is sought then please request a hard copy. Unless otherwise stated any views or opinions presented are solely those of the author and do not represent those of Nomura International plc. This email is intended for informational purposes only and is not a solicitation or offer to buy or sell securities or related financial instruments. Nomura International plc is regulated by the Financial Services Authority and is a member of the London Stock Exchange.