Re: [Exim] IP coming directly from hell?

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Author: William Thompson
Date:  
To: Andreas Gietl
CC: exim-users@exim.org
Subject: Re: [Exim] IP coming directly from hell?
> > > sorry for the HUGE debug-log at the end of this mail.
> > >
> > > I am experiencing a very strang problem on an exim-4.14 server.
> > >
> > > I just describe the situation:
> > >
> > > - client logs on from ip 80.136.241.103
> > > - exim checks relay_from_hosts - but not looks up 80.136.241.103. It
> > > looks up for 217.7.0.61.29 and then of course rejects the relay
> >
> >                 ^
> > that's not an IP address.  Check your file and see if you meant
> > 217.7.0.61/29 instead.  However, that's not a correct CIDR address.

> >
>
> yes. i know. that's why i always put the word ip in parentheses. Since this a
> lookup in relay_from_hosts exim should not alter the adress it looks up. And
> at the beginning and at the end of the connection the ip is output correctly.
> Just for the lookup in the relayhosts it is altered. That is strange. That's
> all i complain about;-)


Exim doesn't see it as an IP address. When it's trying to match it see this
as a hostname and attempts to look it up, Then it'll fail. Someone already
asked this same question on the list (or similar)

> > > I tried to figure out where this "IP" - which is none - comes from, but i
> > > could not find a source for it.
> > >
> > > This happens on some remote-adresses, but not with all. But it is allways
> > > the same "ip" that comes, maybe, directly from hell in to exim.
> > >
> > > These are a few important snippets from the configuration:
> > >
> > > hostlist relay_from_hosts = 127.0.0.1 : /etc/relayhosts
> > >
> > > /etc/relayhosts is a file of the format:
> > >
> > > 80.136.241.103 # 1049896544
> > > 127.0.0.1 # 1049896544
> >
> > Looks ok, but why the "# 1049896544" afterwords?
>
> timestamp. This works just fine. exim treats it as comment


Ok, I wasn't sure what it is, I did assume exim would ignore it.