I installed Kopano on Debian 9 as described in the Kopano Core Administrator Manual with Postfix and OpenLDAP. Everything seems to be working fine, except aliases. I created aliases for several users in LDAP and when email is sent to those aliases the
to field gets rewritten by Postfix. So an email sent to firstname.lastname@example.org is correctly delivered to email@example.com, but the to field in the user’s inbox shows firstname.lastname@example.org and not email@example.com. Is there any way to change this behavior so that the
to field gets preserved for aliases?