* Re: [gentoo-user] Greylisting idea
@ 2006-08-29 23:34 99% ` Grant
0 siblings, 0 replies; 1+ results
From: Grant @ 2006-08-29 23:34 UTC (permalink / raw
To: gentoo-user
> > Greylisting seems to be the most effective way of eliminating unwanted
> > email. The problem is that it also has the potential to eliminate a
> > legitimate email. Couldn't a feature be added to greylisting software
> > that dispatches an email to the sender of any email that is
> > temporarily rejected and doesn't retry within a certain amount of
> > time? The email could say something like, "Your message of {date} was
> > rejected as possible spam. Please call us at {phone_number}."
> >
> > - Grant
>
> I'd just configure a retry time of something large if you're worried
> about it. IIRC the default is one day and you could raise it to two days
> on a slow system without worrying that the db is getting too large.
How exactly are legitimate messages lost through greylisting? I've
come up with these:
1. legitimate messages that don't retry (someone mentioned Amazon newsletters)
2. legitimate messages that take longer than the maximum specified
retry period to retry (has anyone run into a mail server that takes
longer than a day to retry?)
3. legitimate messages that retry from a different server each time
they retry (someone mentioned that they have seen this)
- Grant
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2006-08-29 0:30 [gentoo-user] Greylisting idea Grant
2006-08-29 16:46 ` kashani
2006-08-29 23:34 99% ` Grant
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