[exim] host_lookup = *

One of the things I do daily is watch my exim logs. I have the param
host_lookup = * set so I get reverse lookups on incoming mail. The log shows
when it doesn't get a valid name. ei 2007-08-22 10:25:53 no host name found
for IP address 190.7.149.195 I have yet to see this before a valid e-mail.
Hence my question.

Can you require a valid host_lookup / It would be OK with me to reject the
connection here. Save a lot of time.



Regards



Richard