https://forum.howtoforge.com/threads/postfix-relay_recipient_map-multiple-domains.44670/
postfix relay_recipient_map multiple domains | Howtoforge - Linux Howtos and Tutorials
I need to setup an postfix for Recipient validation because of backscattering. Everything works fine but because of some LDAP and e-mailadressproblem...
recipient mapmultiple domainspostfixrelayhowtoforge