[Greylist-users] auto whitelist

[Graham Toal]

> Is there a way to configure postfix to add every outgoing email
> address to the greylist whitelist?  This way if a user sends an email
> to a virgin email, and that person responds immediately, there won't
> be a five minute delay.  Also this will decrease the chance of false
> positives.

If this becomes a popular tweak I could imagine spammers sending
return receipt requests in order to whitelist themelves!

G