Recoverable error.
The SMTP server sends this message to the client showing that the host name in the mail address is unknown. SMTP determined that this address is not the local host and is not an NJE host.
The mail is rejected. SMTP continues.
Determine why the host name is not valid. If the address is supposed to be an SMTP host, check that the domain name server or site tables have the correct entries. If the address is supposed to be an NJE host, check that the entries in the SMTPRSCS.HOSTINFO data set are current and correct.
SMTPRES
ProcessRQR