On Sat, 25 Sep 2010 05:42:19 +0200
Karsten Bräckelmann <guent...@rudersport.de> wrote:

> The problem is, that your ISP accepts plain text authentication over
> plain text, un-encrypted channels. One of them must be encrypted, at
> the very least if you gonna sign it. Otherwise it's too easy to
> eavesdrop and get the credentials.
> 
> Well, unless you trick your victim to otherwise tell you, or can
> guess a weak password. Encryption doesn't help in that case. A rather
> common source for 419 scammers and some general spam. I've seen spam
> sent by cracked accounts, personally [1]. It does happen. And it
> seems to be the source of your sample.

What's odd is that it's authenticated to his own account. 

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