Author: Daniel Watts Date: To: Craig Jackson CC: exim-users Subject: 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
