i am stumped on a problem
I installed Exchange 2010 to an exisiting 2003 environment (co-existence mode)...
Everything works except Mail cannot be sent from 2010 to 2003.
external email currently received by 2003.....
both exchange 2010 and 2003 can send email out.
exchange 2003 can send email to 2010...but 2010 cannot send to 2003
steps that i already taken
i have already recreated the routing connector
check the DNS entry and MX records
check the SMTP Virtual server on 2003
went into ADSI edit and check permission Configuration > Services> Microsof t Exchange / Company /Server
the only thing i haven't done is to restart the SMTP services on the 2003 box.....should i do that? will that require a restart? is it ok just to restart the SMTP services? will it break anything?
what other options do i really have to try to fix this?
Thanks in Advance