Our Company email domain has changed, need to know the best way to notify external clients.
I have been told to generate an auto reply message that will go to the sender and notify them that the company email has changed.
I have been in looking into the autoreply option and found that you can set it up in outlook using rules and wizard and choose the server side message. But that goes more than once to the sender. I would like it to go once only to every sender that sends an email to the old email domain. Is there a way to make it go once without using out of office reply or using outlook as our users dont want to leave their outlook running overnight and would like the exchange server to generate autoreplies, and only once to every sender.
Please help experts.