hello i am in a migration project from ex2k3 to ex2k7 and i've already finished installing 2 server runing hub-cas in WNLB mode and the RGC between the ex2k3 server and the 1st hub server has been created succefully then i installed a 2 node in with mailbox role in SCC cluster mode and they are failing over and working very fine the problem is when i created a new usermailbox on the ex2k7 and trying to test the mail flow, all the emails between the ex2k3 and the ex2k7 send and recieve works perfectly also the ex2k7 new mailbox can recieve mails from the internet but the problem is he cannot send any emails to the internet? peer in mind that i doubled checked on the RGC between the ex2k7 and the ex2k3 and also i've supressed minor link state but still mail doesnt go from the ex2k7 mailbox to the internet or outside the organaization? any ideas??? waiting for replies ASAP thank you Ahmad Ramadan AbaYazeed

Hi Ahmad,Responded in Migration forum.http://social.technet.microsoft.com/Forums/en-US/exchangesvrmigration/thread/95854ce3-7dda-4bc1-87eb-e53729ec92bdAmit Tank || MVP - Exchange || MCITP - Exchange 2007 || http://ExchangeShare.WordPress.com

hi alleventuallyi had to delete the RGC's connectors between the ex2k3 and the ex2k7 hub transport server and recreate them againand right now all the mail flow between the 2k3 and the 2k7 internally and externally working perfectlythank you i thought i have to inform here in cas someone else got stuck in the same issuethank youAhmad Ramadan AbaYazeed