We currently run Lotus Notes 6.5 and are looking to move to Exchange 2010 over the next few months.
Within the Company we run a single site AD domain (the domain meets the pre-requisites for Exchange 2010) – for example, abc.com
Under Notes we receive e-mail into the company from multiple namespaces – for example abc.com and xyz.com. Each user only has one mailbox and receives e-mail addressed to them (i.e. email@example.com and firstname.lastname@example.org) from both domain namespaces.
At present, as some of our staff can perform tasks for both entities they can swap the sending e-mail address within Lotus Notes itself – via locations. So a user can send an e-mail from email@example.com and then create enough e-mail, swap mail domain within Lotus Notes and then send enough e-mail from firstname.lastname@example.org.
Under Exchange 2010 I know you can receive e-mail inwards from multiple namespaces and configure the default mail address to use either the abc.com or xyz.com namespace to send from but can a user select which e-mail namespace they are sending from under the client itself
FYI, we plan to use Outlook 2007 as the e-mail client.