Hadmut Danisch: > > On 30.07.21 23:09, Wietse Venema wrote: > > This is not needed. Postfix 3.0 and later log the AUTH failure AND > > the client IP address together: > > > > postfix/smtpd[xxx]: disconnect from unknown[x.x.x.x] auth=0/1 > > commands=0/1 > > > > This is logged even when AUTH is disabled (as it should be on port 25).
And of course this ALSO works with AUTH ENABLED on port 25.
Wietse
