[Exim] Newbie log question

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Autor: Bryan Ladd
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Dla: exim-users
Stare tematy: Re: [Exim] May I cause SMTP delay for spammers (a.k.a. teergrubing)?
Temat: [Exim] Newbie log question
Hello, I'm rather new to administering an Exim server, I'm running Exim 3.35
on Debian Woody 2.4.20 My question is in my syslog, I keep getting this
canonical error when anyone on my 13 subnets checks thier email with outlook
or outlook express. Is there a way I can turn off the canonical lookup for
something like 192.168.0/24.0/24? Is this even a problem other than filling
up the syslog? Am I even thinking in the right direction?

Mar 22 15:27:43 mydomain in.qpopper[28862]: connect from 192.168.12.124
Mar 22 15:27:43 mydomain in.qpopper[28862]: (v4.0.4) Unable to get canonical
name of client 192.168.12.124: Unknown host (1) [pop_init.c:1075]
Mar 22 15:27:48 mydomain in.qpopper[28862]: (v4.0.4) POP login by user
"jones" at (192.168.12.124) 192.168.12.124 [pop_log.c:244]

thanks

bryan