On Monday 8 March 2004, blf at utvinternet.ie (Brian Foster) wrote:
> as an FYI, there is also at least one site which will do
> a scan for being an open mail rely. from my notes ....
>> Date: Tue, 02 Dec 2003 22:14:51 +0100
> Subject: open mail rely test
>> 1. Log onto your mail server.
> 2. As root [ bletch! -blf], issue the command:
> telnet relay-test.mail-abuse.org
> 3. Wait for it to finish and read the final message.
> It will tell you if your server is an open relay
There's a number of sites which will do this. Some of them use this
telnet approach, some work from a web browser. I'd have to wonder why
that one wants you to telnet as root though? Can't think of a hole off
the top of my head, but I neither can I think of a legitimate reason for
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