I just migrated from Exchange 2003 to Exchange 2010. I have 2 completely separate forrests that have a trust setup amongst them. Each users mailbox is setup on exchange 2010 as a linked mailbox from the Exchange 2003 forrest where I have Server 2003 R2 AD domain. The exchange 2010 domain is Server 2008 R2. Currently all users accounts are housed in the Server 2003 but will be migrating them in the next couple of weeks.
There are a few issues I am running across. The first one is people's cache contacts in outlook for what used to be the .nk2 file appears not to be working. Not sure how to ge the nk2 file setup properly.
The second issue is the smtp relay or rather receive connectors. I have a few canon copy machines and I am having issues with sending to pdf with the copy machines to external accounts. It took me all day to get it working for internal users in the domain and the copy machines are not using any authentication cause I could not get it to work to with authentication.
But now I am unable to send to any external recipients. The problem is that we have tenants in our suite who are alos able to use the canon copy machine to scan to pdf and it used to wrk fine with exchange 2003 but I cannot figure out what needs to be changed to amke sure that they can scan to pdf as well as not affecting anything else. Here are the current screenshots for the current receive connectors. I have 2 one for default connector and the other for client connector.