Hi,

> Firstly, before you convert all these to whitelist_from_rcvd, perhaps you
> ought to ask yourself whether you really need 1000 entries on your
> whitelist.

I'm surprised you were the first to make that very comment, so thanks.

> Does mail from these addresses actually get miscategorised as
> spam, or would SA get it right without the whitelist?

Mail was being tagged as spam, and the organization became concerned
that others would be tagged, so it seemed anytime there was a
high-profile external business contact that they couldn't risk being
tagged, they had it added to the whitelist.

The list used to be much larger until we spent quite a while (months
and months) going through it with them to prune it.

I don't doubt that if we removed a substantial amount of them that SA
would do what's right, but there doesn't seem to be any scientific way
to do that successfully.

> Secondly, don't forget about whitelist_from_spf. If a domain has an SPF
> record, this is a better solution than whitelist_from_rcvd as it avoids the
> need for *you* to work out which are the outgoing servers.

Is there a way to script that for the 1000 or so entries, to see which
have SPF records?

> Lastly, if you do use whitelist_from_rcvd, remember that there may be
> multiple outgoing servers for a given domain, and worse they may change over
> time.

Yeah, I thought of that too, so it doesn't sound like that's going to
work well here.

Thanks,
Alex

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