Am 13.11.2014 um 21:08 schrieb Justin Edmands:
We have a few thousand vendors in our websites database that I would like to add to a whitelist. I am thinking of creating a /etc/mail/spamassassin/corewhitelist.cf <http://corewhitelist.cf> from this database. What are the limitations/ repercussions of using a sitewide whitelist? If I have 2000 addresses in the whitelist, will it take an extra 3,30,60,etc. seconds to process an email? base the performance off of a 2GB RAM 1vCPU 5560 Xeon virtual machine. What if this list grows to 20000 entries?
don't do that!that sort of whitelisting also means that you bypass any forged mail because the From-header and you can't implement a spoofing protection also covering From: besides envelope without break mailing-lists
put their servers on a DNSWL with rbdnsd so you trust a specific remote host and not a untrustable header!
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