Hi, we have an Exchange 2013 environment for hosting purposes.
One client uses two seperate company names (and domain names). These companies are seperated in Exchange and use seperate address lists. This client uses mail between the two domains.
Let's say the domains are yin.com and yang.com. The users use Outlook Webmail and the Mac OSX builtin mailclient
The problem is that when kevin@yin.com sends email to bob@yang.com, Bob is able to receieve the mail, but the email-address from Kevin is not included in the mail. It is just listed as Kevin, without any property.
When Bob replies to the message from the OSX Mail client, it apparently tries to make up an address and generates something to the effect of this:
Kevin </o=Hosting Company/ou=Exchange Administrative Group /cn=Recipients/cn=*longnumber*>
This address is not correct and when sent, the email is bounced back with a NDR-report.
When Bob replies to the message from OWA, the address is simply the name with no email-address. This also results in an NDR report.
What can we do to make OWA or Mac mail keep the correct emailaddresses?