Having a problem with a second domain name that I have added into Exchange 2010
All is working well configuration wise apart from one snag which is causing some issues.
After switch over to DomainB.com incoming and outgoing mail is fine.
Apart from when an email was sent from an external contact to a group of contacts and one of them being to an executive in our office, when he hits the reply all button he is also emailing himself back as his old email address was in the list. Therefore
because he replies from domainB but the email was sent to domainA.
Is there a way to ensure that exchange recognises that this is the same person and he/she would not also be emailing themselves back?
Thanks.