5 minute delay sending email from 2010 to 2003 we have got it working and i am in the process or slowly moving mailboxs from 2003 and 2010 what i have found is there is a delay from a user sending an e mail who is on 2010 to user on 2003 (up to 5 minutes) both the exchange 2003 and 2010 are in the same data centre so there is no distance involved it is a simple 1 forest domain
Exchange 2010 and Exchange 2016 migration co-existence I'm in the planning stages for migrating from Exchange 2010 (that I inherited a few months ago) to Exchange 2016 and I have some questions I have looked at copious amounts of documentation but still need some clarity so thanks for any input I am referencing the Exchange Server Deployment Asst and using that as the base framework for my production plan For reference: