using C650 with 6.4.0-273
I have defined a private listener. For internal domains I have domains assigned routing with a ldap query. It resolves to mailLocalAddress.
If I get a non delivery notification (hard bounce) so this messages is routed via a SMTP route, no ldap query is done.
We have used SMTP routes before changing now to ldap based routing on private and public listeners. All E-Mails are routed successfully except non delivery notifications.
If I delete the SMTP route (for my internal mail domain) NDN is deliverd via public listener (MX lookup, not necessary at the same IronPort in case of multiple MX records).
Any way to have the same (ldap based routing) for both normal messages and non delivery messages?