Clientlookup Option

Deleted in release: 8.1

The submit proxy and this option have been removed from the Messaging Server 8.1 (tezpur) release.

The  option (available under the   and   groups) causes performing a DNS reverse lookup on the client IP address when set to 1. The reverse lookup is performed unconditionally, so the SMTP relay server does not need to perform it. This option may be set on a per hosted domain basis.

Note that a DNS lookup is performed regardless of this setting if hostnames are used in a global   filter or a per-domain or per-user access filter.

The default value is: 0