Need support for address rewriting
Eg. When anyone inside my organisation sends mail to external domains, the mail will have the senders address as firstname.lastname@example.org.
Internally each mail box will be identified separately and mails inside our domain will have senders address as the actual senders mail address.
Additionally the replies to mails from external domains should be routed to the actual sender based on the previous conversation message header.(if possible
Its like the address rewriting in Edge Transport Server of Exchange 2013
Victor Ivanidze commented
There exists a cloud service that implements the sender address rewriting.
Just google for "address rewriting in Office 365".
Can't wait for this feature be available.