Greylisting seems to be a very effective tool against spam, though I'm wondering if a future version can set time and day restrictions on when to automatically enable greylisting and when to automatically turn it off. Our organization is not yet ready to run greylisting during the day, but if it occurs at night, then we can prevent most overnight spam while receiving messages immediately from various people during the day.
While I'm in the feature-request mode of thought ;-), it would be nice to adjust how many days a greylist entry remains active. A week can be too short for some uses, including regular contacts who don't e-mail very often but, when they do, it can be time-critical. It would also be very nice if we can specify which servers and/or e-mail addresses will always go through immediately, such as business partners and the Blackberry servers.
Thanks :-).
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