Ive got two Servers:
- ServerA - Windows 2003 SBS Server, IP: 192.168.10.1/24, PDC for BizA.local, Exchange manages emails for BizA.com
- ServerB - Windows Server 2010 with Exchange 2013, IP: 192.168.10.10/24, PDC for BizB.local, Exchange to manage emails for BizB.com.
Due to BTs network in the area, we are only able to get one static IP from them.
Due to the way the two companies work, they require access to both domains but need the option to be able to split the two domains if one company moves out of the office. All user accounts/permissions etc work fine.
I've got the emails for *@BizA.com being sent/received at ServerA no problems. Im trying to get the emails to income to ServerB for *@BizB.com. My plan was to point the MX record to the static IP (same as have done with *@BizA.com) and set up a Mail Relay from ServerA to ServerB.
Ive set ServerA to accept the *@BizB.com emails and this works, I get NDRs from the server saying The e-mail account does not exist at the organization this message was sent to. Check the e-mail address, or contact the recipient directly to find out the correct address. I've then created a new SMTP connector to relay the emails to ServerB. In theory, this should work but im not receiving any emails for *@BizB.com.
It may be something small and stupid that I've missed. Help would be appretiated.