Use this setting to generate DNS Blacklist Filter statistics for each
connecting host found
in a DNS blacklist site. There is no default setting, but in the absence
of this setting, the
SMTP task maintains statistics that track the total number of connecting
hosts that were found
on the combined DNSBL of all sites combined, as well as how many were
found on the DNSBL of
each configured site.
0 - Host specific DNS Blacklist Filter statistics are not generated by
the SMTP server.
1 - SMTP server generates host specific DNS Blacklist Filter statistics
which indicate the
total number of hits per DNSBL site, per connecting host's IP address
SMTPExpandDNSBLStats = value