Scot L. Harris wrote:
The thing that scares me about greylisting is that the CEO's stockbroker might be running Groupwise 1.0 or Exchange 4.0 or BillyBob's Very Good Mailserver 2003 which may not handle the retry smoothly.
In the last 24 hours only had 8 spam messages get through greylisting. And some of those I believe are actually commercial mailing lists
someone signed up for and no longer want. In comparison I was receiving
3000 to 6000 spam messages a day.
Again thanks for all who provided advice on this.
I guess that falls into the old RBL debate about whether collateral damage is acceptable.
