On Donnerstag 27 August 2009 Wietse Venema wrote:
> And this was logged when a reverse hostname resolved to the wrong IP
> address:
>
>     Aug 26 00:26:12 spike postfix/smtpd[13393]: warning:
> 61.135.132.106: address not listed for hostname
> relay2nd.mail.sohu.com

I just found a good logging example with the nfs server:
rpc.mountd: Fake hostname ipmi-p4u.zmi.at for 212.69.162.206 - forward 
lookup doesn't exist
That statement makes it clear, and would be a nice message for postfix 
also.

mfg zmi
-- 
// Michael Monnerie, Ing.BSc    -----      http://it-management.at
// Tel: 0660 / 415 65 31                      .network.your.ideas.
// PGP Key:         "curl -s http://zmi.at/zmi.asc | gpg --import"
// Fingerprint: AC19 F9D5 36ED CD8A EF38  500E CE14 91F7 1C12 09B4
// Keyserver: wwwkeys.eu.pgp.net                  Key-ID: 1C1209B4

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