Exchange Primary Default SMTP address issues?


Beta member
Las Vegas, NV
We currently are running Exchange 2013 and we have it configured to handle multiple domain email addresses. is the main domain and is set to the smtp reply address. We have other domains lets call them and and now we are rebranding the company to

I have added to the accepted domains successfully. Our spam filter company has added to their system. I have updated the Mx records for successfully. I can receive email into the mail server by sending to the original domain and to the new branding successfully also.

Now that all the background information is laid out, the following is my main problem. We have our Executive staff share their calendars with their personal admins. When I change the Default email reply address from the to the it seems to break the calendar sharing. I would rather not have to go around to each individual computer (Mac and PC) and reconfigure their Outlook.

Thanks in advance for any insight….
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