> > > I hope to use this to cut down on spam and phishing attempts, because > I could identify legitimate mail by virtue of having the correct > sender address (or at least domain) and recipient. That is, mail from > [EMAIL PROTECTED] to the [EMAIL PROTECTED] is very likely mail > from my bank, but mail from [EMAIL PROTECTED] to that same address > is not. Likewise, mail from [EMAIL PROTECTED] to [EMAIL PROTECTED] > is invalid. >
Won't greylisting fulfill most of the requirements here?
