It means that Sendmail could not resolve the IP of the connecting
system to a valid domain name.
You probably can't do anything to fix it...unless it's your system
and your DNS. Otherwise, it's up to the person responsible for the
domain/IP allocation of the system, in question, to fix their reverse
DNS mapping.
On Thu, 22 Feb 2001 06:54:31 -0500, Steve Gulick wrote:
>Could some one tell me what causes this log entry. I know it's sendmail and
>the ip address is mine but what causes it and how do I fix it?
>
>TIA
>Steve
>
>Feb 21 15:22:13 localhost sendmail[23705]: gethostbyaddr(XXX.XXX.XXX.XXX)
>failed: 2
>
>
>
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