Is there anything which is either a part of, or that works with Postfix that is capable of automagically maintaining a personal whitelist of specific e-mail addresses, to which a given user has previously sent outbound e-mail?
To be clear, although I have the local Postfix configured to use many different public blacklists, and also some local domain-based blacklists (in which I have blacklisted all of yahoo.com, for example) what I am looking for is something that would effectively override all those filters for specific e-mail addresses that I have previously sent outbound mail to, e.g. <myrfriend...@yahoo.com>. I'm guessing that I am far from the first person to have wanted such a thing, but has it already been built? Regards, rfg P.S. I am agnostic with respect to the level of specificity required. For example if I sent something to <myrfriend...@yahoo.com> and then that address became whitelisted for _all_ local recipient addrsses, I think that would acceptable, even if (as should be obvious) it might possibly be better to have that address only be _selectively_ whitelisted, i.e. just for <r...@tristatelogic.com>. Either way, an automated whitelisting thing would be useful... ... but only if it works with Postfix.
