Dear All, I am planning to install exchange 2010 in my domain that contain exchange 2003. i have two 2003 exchange servers , one front end and one mailbox. and i want to install 2 exchange 2010 servers,when i start the installation for exch 2010 it asking to connect to exchange 2003 (Routing group). Here Which exch 2003 server i want to select. it will be 2003 front end or mailbox. Please advice, Also i am looking good article that covers all steps for 2003 to 2010 migration.Best Regards, Sanuj Mathelaveedu Systems Support Engineer | Customer Engineering & Support Services | Almoayyed Computers | P. O. Box 26259 | Manama - Bahrain | Switchboard: +973 17700777 | Ext: 285 | Fax: +973 17701211 | Mobile: +973 39328062 | email: Sanuj@almoayyedcomputers.com | web: www.almoayyedcomputers.com |

Put your back-end mailbox server in there. Here is a good two-part article: http://www.simple-talk.com/sysadmin/exchange/upgrade-exchange-2003-to-exchange-2010/ http://www.simple-talk.com/sysadmin/exchange/upgrade-exchange-2003-to-exchange-2010---part-ii/Neil Hobson | www.msexchange.org/neil_hobson | neilhobson.blogspot.com | twitter @NeilHobson