On Wed, Jun 14, 2006 at 11:48:06AM +1000, Jeff Waugh wrote:
> <quote who="Billy Kwong">
> 
> > On Wed, Jun 14, 2006 at 10:44:51AM +1000, Alexander Samad wrote:
> > > doesn't it mean that the slug smtp server has tried to verify
> > > [EMAIL PROTECTED] is a valid email adderss, by making a connect to the
> > > smtp server for snowfrog.net (dig snowfrog.net mx) and trying a vrfy
> > > command ?
> > 
> > That depends on the implementation of the MTA or greylisting. The point of
> > greylisting is to slow down the spammers as to how quickly (which is what
> > they rely on) they could spew out spam. 
> > 
> > Most MTAs nowadays has disabled the VRFY command to prevent the leakages
> > of email accounts or (even worse) actual accounts.
> 
> SAV is different to VRFY, and the combination of SAV and greylisting is
> really broken. I suggested to Chris that he turn SAV off, because it ends up
> being more problematic than it's worth.
What is SAV ?
> 
> - Jeff
> 
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>  
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