Re: [exim] greylisting issue

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Autor: Daniel Watts
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A: Craig Jackson
CC: exim-users
Assumpte: Re: [exim] greylisting issue


Craig Jackson wrote:

> Hi,
>
> I am using Exim 4.50 and greylisting for an email gateway. I receive
> an email not in the database; Exim sends the 451; and the vast
> majority of mail servers resend. It's the few mail servers that I need
> to receive mail from that don't resend that I'm concerned about. For
> example, Southwest Airlines does not always resend. This is a big
> problem. I'm wondering what people on this list who use greylisting do
> about this. Would it be better to send 450, for example? I've tried
> whitelisting, but that's ex post and thus kind of useless.
>
>

I think the standard thing to do is to find a whitelisting resource and
update your whitelist regularly (auto cron script it).
READ: For example: http://greylisting.org/whitelisting.shtml

The reasonably defacto list:
http://cvs.puremagic.com/viewcvs/greylisting/schema/whitelist_ip.txt?view=markup