Hi,
We recently added an Exchange Server 2013 in our 2010 environment to achieve a hybrid setup for a multi organization 0365 migration.
Since we installed Exchange 2013, we are experiencing some issues with email headers being rewritten to the default email adresses.
for example:
When I email to kristof1@mydomain.com, the TO field in the header changes to kristof@AD-domain.com causing the mail rules to not match the emailaddress specified in the rule. (looking for email address in to filed of the header)
The email address has several aliases and the rule is always looking for the email address in the TO field of the header.
External mail is working just fine.
Does anyone has a clue how to troubleshoot this issue?
Thanks in advance,
