[Exim] Re: entry in rejectlog

+++ Derrick MacPherson [exim-users] <16/07/01 14:15 -0700>:
> I have hundreds of entries in my rejectlog that look like:
> 2001-07-16 11:10:32 rejected HELO from [64.221.225.150]: syntactically
> invalid argument(s): _[206.102.79.223]_by
[...]
> Is this malicious in nature? Or a moron

Both. It is a spammer. If your machine was an anonymous open relay (say an
ancient SMI8.6/SVR4 sendmail on solaris) that HELO would look like an
originating IP address to the less than clueful ...

    -suresh