Dear All,I have created 9 new storage groups in exchange 2007 SCC cluster. When i move a test mailbox from the existing storage groups to any of these new storage groups, it moves fine. However after that when i send an external email to gmail or hotmail from any of the mailboxes on the new Storage groupthe From addressappears as below.IMCEAEX-_O=ALJAZEERA_OU=FIRST+20ADMINISTRATIVE+20GROUP_CN=RECIPIENTS_CN=TESTOWA5@aljazeera.netPlease advice

Hi Malik,I would start with Exchange Best Practices analyzer and see the results if that helps. Also, I would suggest checking the LegacyExchangeDN attribute on the couple of mailbox if they look correct. Take a look at Understanding the LegacyExchangeDN for more information. MMilind Naphade | MCTS:M | http://www.msexchangegeek.com

I resolved this problem by unhiding the mailbox from GAL. Since these were test mailboxes they were hidden from GAL.

Great it worked for you :-)Milind Naphade | MCTS:M | http://www.msexchangegeek.com