We used recently added an authoritative domain to our exchange 2013 server. After about a month we made the changeover in our default mail policy to make newdomain.com the default reply to. Mail flow is working ok, people can email user@olddomain.com and user@newdomain.com.
What's not working is a mail flow rule I setup to try and intercept all mail being sent to anybody @olddomain.com and BCC it to a specific mailbox. I know that the BCC portion is working because if I have it trigger on a specific recipient (whole mailbox) it works fine, but I can't seem to get it to trigger based on the recipient email address. I've put rules several ways including:
The recipient address includes:
olddomain.com
olddomain
@olddomain.com
*@olddomain.com
As well as:
The recipient domain is:
olddomain.com
olddomain
@olddomain.com
*@olddomain.com
I even tried matching the To: field in the header and having it match the text:
olddomain.com
Nothing appears to be working. Any suggestions?