[Dovecot] SSD drives are really fast running Dovecot

[Steve]

-------- Original-Nachricht --------
> Datum: Mon, 17 Jan 2011 11:13:19 +0100 (CET)
> Von: Maarten Bezemer <mcbdovecot at robuust.nl>
> An: Dovecot Mailing List <dovecot at dovecot.org>
> Betreff: Re: [Dovecot] SSD drives are really fast running Dovecot

> 
> On Mon, 17 Jan 2011, Steve wrote:
> 
> > Spam does not bump the average mail size considerably. Average spam 
> > mails is way smaller then average normal mails. The reason for this is 
> > very simple: Spammers need to reach as many end users as possible. And 
> > they need to get those mails out as fastest as possible.
> 
> Somewhat correct. Due to a lot of spamfilter setups skip messages above a 
> certain size, we've seen an increase of such big messages. These affect 
> the average quite severely.
> 
> An average, however, is only just that: an average. There may not even be 
> 1 message that has exactly the average size...
> 
> When looking at last two weeks worth of spam that didn't come from obvious
> blacklisted sources, I see:
> 45 messages below 4KB (including quite some miserable failures that forgot
> to include a message body...)
> 127 messages above 8KB, of which only 14 above 20KB
> 940 messages between 4KB and 8KB
> 
> Yet, the _average_ was well above 8KB, due to a few 500KB+ messages.
> 
You get 500Kb+ sized spam messages? That is not usual. I have not done any computation on my part but I remember seen last year (or so) a study showing that spam messages are usually below 64Kb.

Anyway... Why is this so ultra important how big spam messages are?


> So, mean, median, or whatever, it's just lies, damn lies, and statistics.
> 
> 
> -- 
> Maarten

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