On Sun, 17 Feb 2002, Daniel Rogers wrote:
> It seems I've been getting a lot of spam lately that has a valid MX,
> but the MX is 127.0.0.1 (loopback). Any chance we could add a test for
> this?
That will break a large number of legitimate uses of email forwarding,
notably mine.[1]
I use the Unix fetchmail(1) command to collect email from a number of
IMAP and POP3 accounts around the Internet, some directly and some
through various secure tunnels.
It picks up this email, adds a recieved line for itself, then forwards
the email to 127.0.0.1:25 via SMTP.
This means that *every* piece of email I read on my laptop would match
this test.
This is, incidentally, the default behavior of fetchmail; while it will
tolerate other delivery methods it's not exactly happy about it.
Daniel
Footnotes:
[1] I seem to run a somewhat odd email setup, given the number of times
I have said this about suggested tests recently. Hopefully no one
is /too/ annoyed yet. :)
--
When you steal from one author, it's plagiarism;
if you steal from many, it's research.
-- Wilson Mizner
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