The "Local recipient maps" option specifies optional lookup tables with all users that are local with respect to "$mydestination" and "$inet_interfaces". If this parameter is defined, then the SMTP server will reject mail for unknown local users.
The "Local recipient maps" option accepts tables with bare usernames such as unix:passwd.byname and alias maps.
Beware: if the Postfix SMTP server runs chrooted, you may have to copy the passwd database into the jail. This is system dependent.
This option sets the "local_recipient_maps" postfix variable.
FOR THIS TO WORK, DO NOT SPECIFY VIRTUAL DOMAINS IN MYDESTINATION. MYDESTINATION MUST LIST NON-VIRTUAL DOMAINS ONLY.