Yahoo and their mail filters..

Alexander Harrowell a.harrowell at
Thu Feb 26 17:05:26 UTC 2009

On Thu, Feb 26, 2009 at 5:28 PM, John R. Levine <johnl at> wrote:

> This also pre-dates organized crime becoming heavily involved, and
>> pre-dates the obsession with browser exploits.  Back then a lot of spam was
>> sent by semi-legitimate marketers from the US.  These days all the bad guys
>> are out to get you to click on a single link.
> Right.  Back in the 90s spammers were trying to build their lists, and used
> fake opt outs to do so.  These days through a combination of web scraping
> and dictionary attacks, they have more addresses than they know what to do
> with.
> My advice to people these days is to unsub if a message is from someone
> you've corresponded with before, or if it looks like someone who is legit
> but clueless.  Then hit the spam button.

Of course, the browsploit issue means that clicking on ANY links in dubious
e-mail is highly unwise.

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